Definition of hermetic in English:



  • 1(of a seal or closure) complete and airtight.

    ‘a hermetic seal that ensures perfect waterproofing’
    • ‘The samples are then analyzed at the IAEA and other laboratories in ‘clean’ rooms, where air flow and hermetic seals maintain a contamination-free environment.’
    • ‘Every step, from die preparation to package seal, must be performed in a Class 100 clean-room environment until the device is safely sealed in a clean, hermetic package.’
    • ‘The metallization allows the fiber to be soldered to the ferrule, which in turn can be brazed to the side of the package for a hermetic seal.’
    • ‘The dielectric layer is itself its own hermetic seal against the substrate, and readily lends itself to the formation of the additional hermetic seal needed between itself and the cover plate.’
    • ‘Soon a strong smell penetrated the cabin - the rubber gaskets of the hermetic seal of the hatch were burning.’
    • ‘Lids are attached using the company's Ultraseal technology, which produces a hermetic seal in less than 2 seconds.’
    • ‘The hermetic seals have been sabotaged; we have infiltrators within our ranks.’
    • ‘The pack's hermetic seal prevents further contamination.’
    • ‘The massive value of a single 300 mm wafer is accelerating the trend towards more hermetic production processes.’
    • ‘The still head and still body must have a hermetic seal.’
    • ‘NBC equipment includes a filter ventilation unit as well as hermetic sealing.’
    • ‘From here, you ascend to a functional level of hermetic cylindrical pods, containing lavatories and storage.’
    • ‘Stuff from the shop came without safety caps and hermetic seals because no one had yet tried to poison a perfect stranger?’
    • ‘‘If it's made properly and sealed properly, you provide hermetic sealing that keeps oxygen and air out,’ says Dunlap.’
    • ‘Electroforms have been used as flexible joints, hermetic seals, electromagnetic shields, and other special functions, and have long provided designers with unusual shapes.’
    • ‘It is also likely, as period accounts proposed, that the unusually tight hermetic seal of the four coffins and outer masonry helped to preserve the remains.’
    • ‘Is the protective barrier hermetic or will its atmosphere change over time, potentially leading to the early death of the device?’
    • ‘Solders containing about 2% tin (remainder lead) are used for can side seams to provide hermetic seals.’
    • ‘This provides a hermetic seal between the syringe luer tip and the valve.’
    • ‘The survey determined that the reactor's hermetic seal was broken but that radiation emission was so minor that people and the environment were not endangered.’
    airtight, tight, sealed, shut
    watertight, waterproof
    View synonyms
    1. 1.1Insulated or protected from outside influences.
      ‘a hermetic society’
      • ‘The picture is good at spoofing the hermetic atmosphere of academia without going overboard into parody or caricature.’
      • ‘The hermetic theatre-temple can therefore be defined as a sacred space transcending the secular concerns of everyday life.’
      • ‘Inscrutable and hermetic on the outside, with its rugged, cork-clad walls, the Spanish pavilion conceals a luminous public plaza at its heart.’
      • ‘Summer's here, and the time is right even for hermetic glitch heads to get outside and lay back in the sun.’
      • ‘Still, while the album's clarity blurs a bit in the late stage, its hermetic, lustrous atmosphere remains intact - a soundtrack for the planetarium.’
      • ‘For security reasons, the cabins have no windows and are inscrutably hermetic from the outside.’
      • ‘Content plays a major role in Irving's music, elements drawn from outside the hermetic confines of the electronica genre.’
      • ‘By presuming that no intelligent political life exists outside their hermetic space, the party ensured that theirs will be a small and suffocating house.’
      • ‘Outside of a fairly hermetic subculture, comic books used to be dismissed as children's fare.’
      • ‘If you think of this as another of Altman's dissections of hermetic societies that function according to their own rules and imperatives, you may find yourself sporadically absorbed.’
      • ‘In other words, the director makes the camera into the ‘ideal’ observer, situated in the story and plot, but outside of these constraints and looking into a hermetic, consistent world.’
      • ‘Siena, Spender believes, is one of the most hermetic societies you will find anywhere.’
      • ‘It is difficult to say how that hermetic nation views unity.’
      • ‘Nostalgic in the way trains journeys are, Nothing Down-To-Earth seems hermetic to any interaction with the outside world, retreating instead in the closeted comfort of Beullac's imaginary world.’
      • ‘From the street outside, the spruced up nineteenth-century facade of the hermetic perimeter block gives little clue to the drama of the internal transformation.’
      • ‘Whatever comes from outside the circumference of the hermetic village is effortlessly incorporated.’
      • ‘Where the upper level is cool, luminous and connects with the wider world, the lower floor is a dark, hermetic labyrinth, intended to cultivate an atmosphere of calm and detachment.’
      • ‘Every year thousands of people are losing their lives in attempts to break through this hermetic sealing-off of Europe.’
      • ‘Or for those few wealthy or talented enough, it's a hermetic fraternity dissimulating itself to the outside world through art and culture.’
      • ‘The three bands each made fans outside the genre's hermetic ghetto by embracing a world outside their laptops.’
  • 2Relating to an ancient occult tradition encompassing alchemy, astrology, and theosophy.

    ‘some saw in the Hermetic texts an anticipation of Christianity’
    • ‘One of my Hermetic hobbies is the dissection and understanding of the workings of individual emotional responses.’
    • ‘The origins of Neo-Platonism can be traced back to the era of Hellenistic syncretism which spawned such movements and schools of thought as Gnosticism and the Hermetic tradition.’
    • ‘Of these the Asclepius has some interest as a Latin version of a Hermetic treatise.’
    • ‘The Golden Dawn (full name, ‘The Hermetic Order of the Golden Dawn’) was a hermetic magical group.’
    • ‘He is currently immersed in self-guided studies of the Hermetic sciences, Gnostic Christianity, and the Kabbalah, and he is a formal student of Hinduism, specifically its Shiva Tantra branch.’
    • ‘Moreover, whereas Aristotelianism was specifically not a worker science, the hermetic corpus intimated that natural philosophers could not only understand but manipulate this spirit universe for their own ends.’
    • ‘Struggling for her moorings there, she began reading C.G. Jung which led to books on alchemy, hermetic magic, astrology and the Kabbala.’
    • ‘In revisiting the Hermetic operation, and in accounting for how it is that demons mix with human images, Augustine relies not on the dynamics of air or breath, but rather on the image of the bind.’
    • ‘Pope Pete, on the other hand, has the same problem as all hermetic-influenced schizophrenics of the past years (Crowley being number one).’
    • ‘But this ‘primitive chemistry’ was also a sophisticated hermetic philosophy.’
    • ‘The ‘chief stimulus of that new turning toward the world and operating on the world’ was, according to Yates, what she referred to as the Hermetic tradition.’
    • ‘So, this can either be read as a post on letting magic back into your life, or on adopting your very own Elizabethan Hermetic philosopher/guardian angel!’
    • ‘Long an object of fervent Gnostic and Hermetic speculations, it was now extolled as the ideal type of the human being, and celebrated accordingly in literature and art, especially among the Symbolists and the Decadents.’
    • ‘The only philosophical texts produced on Egyptian soil are the so-called Hermetic treatises, which contain dialogues in Greek between a god and a disciple.’
    • ‘Walter Benjamin never strayed far from mystical and hermetic traditions, however, and so it's Benjamin the alchemist we meet in Scene I in the body of lead he has failed to transform.’
    • ‘The Hermetic tradition, for example, frequently mixes and matches deities from different pantheons, but it does so with a deep understanding of what it's affecting and why.’
    • ‘Also, the information was skewed rather heavily towards those those who're from a Hermetic background, or delved into the Western magical traditions.’
    • ‘Thus, modern space discoveries have deepened our understanding of the primary Hermetic principle, as quoted above by Paracelsus.’
    • ‘Granted, none of this is hermetic or chaos magic or even plain old wicca.’
    • ‘After she resurrects him Isis performs a sexual act, impregnating herself with new life, their hawk headed son Horus, who in alchemy and Hermetic tradition appears to be identified as a Christ-anointed one.’
    1. 2.1Difficult to understand because intended for a small number of people with specialized knowledge.
      ‘obscure and hermetic poems’
      • ‘It has been observed often enough that references became increasingly obscure and hermetic in the nineteenth century, giving way to polymorphous primitivism and nonreferentiality.’
      • ‘Wright was, in a sense, adding apocryphal books to his own hermetic scripture with each poem.’
      • ‘The sense of heritage, of important but often barely visible poetic traditions, becomes almost theological in the depth of assumed knowledges, and hermetic in its collectivity.’
      • ‘That Hamann suffers so much neglect, one must concede, is largely the result of the willfully hermetic impenetrability of his most important works.’
      • ‘In Another Worldy, we witness the outcome of vast jungles of nerves organized into movements that are simultaneously disciplined, mystical, hermetic, erotic and heretical.’
      • ‘To recognize that a text is hermetic does not preclude understanding how it attains such closure.’
      • ‘Fourteen years after his death, the followers of hermetic knowledge received a blow more devastating than anything the Inquisition could deliver to their cause.’
      • ‘Teasingly hermetic, liltingly musical, these are not so much poems to decode or pull apart in search of a precept or motto, as poems to sink into or wander through, enjoying a cavalcade of sensory impressions.’
      • ‘They are always showing off; they are hermetic and secretive.’
      • ‘This is a crucial corrective and challenge to hermetic studies of texts written by Americans.’
      • ‘For the mystic, knowledge is hermetic; it is a secret revealed to only those few who have what it takes.’
      • ‘Moreover, their perplexing content is hermetic and resistant to interpretation.’
      • ‘Tomorrow I go back to French class, having bolted a few weeks before the end of the half year when the darker more hermetic instincts that come with June kicked in.’
      • ‘The hermetic obscurantism of these older texts repels a more casual reader, steeped as they are in poststructuralist theory and remote Marxist anthropology.’
      • ‘The hermeneutics used in the historicists' calculus of exploitation and oppression are less hermetic than those of new criticism and theory, but they are just as schematic.’
      • ‘Anderson does hold the paranoid, hermetic mood for all 100 minutes and Bale is impressive, even without the thin-man gimmick.’
      • ‘What worries me is that the designed world might become so hermetic and the signifiers of functionality so appropriated that the opportunity for that fascination never arises.’
      • ‘More than anything, it is the hermetic mysteries of maths, remembered with discomfort from schooldays, that intimidate the public and make journalists wary as to how to mediate between scientists and a non-scientific audience.’
      • ‘Smith's narratives are pretty hermetic - they have an internal logic that makes a consistent kind of sense, but are difficult to translate into an actual description of what they are about.’
      • ‘Here, he's at his most hermetic and obscure, a long intake of breath that pulls in and in but never exhales.’


Mid 17th century (in hermetic): from modern Latin hermeticus, from Hermes, identified with Thoth, regarded as the founder of alchemy and astrology.