Definition of occlude in English:

occlude

verb

[WITH OBJECT]technical, formal
  • 1Stop, close up, or obstruct (an opening, orifice, or passage)

    ‘thick make-up can occlude the pores’
    • ‘All this is jam-packed into your sinuses and other nasal structures, occluding your airway completely.’
    • ‘Instead, the barrel pore is occluded by a large, globular amino-terminal domain, termed the plug.’
    • ‘In earlier models of the closed nAChR channel, pore-facing side chains of leucines of the Equatorial ring almost occlude the pore.’
    • ‘The prime focus in the treatment of an AMI in the 1980s and 1990s was on the re-establishment of flow in the acutely occluded coronary artery.’
    • ‘Cystourethroscopy showed a large bladder tumor completely occluding the right ureteric orifice.’
    • ‘Furthermore, this stent can be implanted without occluding the side bronchus.’
    • ‘After acquiring Doppler sounds at the palmar arch, the RNFA occludes the radial artery flow.’
    • ‘Tumors in the tracheobronchial tree often occlude major airways producing obstructive pneumonitis and hypoxia.’
    • ‘However, these side chains do not fully occlude the pore but rather appear to form a hydrophobic barrier to ion permeation.’
    • ‘An ascending dissection occasionally can occlude the ostium of a coronary artery and lead to myocardial infarction.’
    • ‘Devices for occluding the urethra include urethral plugs and, more recently, expandable urethral devices.’
    • ‘The important feature of this closed state model is that the side chains of leucines of the Equatorial ring do not occlude the pore completely.’
    • ‘The left middle cerebral artery was almost completely occluded by fungal emboli.’
    • ‘In their study, Morgan and coworkers occluded the contralateral nostril, and the patients therefore performed a ‘gasp’ rather than a sniff.’
    • ‘Fibroid embolisation - both uterine arteries are occluded using a transfemoral approach.’
    • ‘In 1882, Karl Huber reported on 17 patients with cardiac infarcts, which he attributed to occluded coronary arteries.’
    • ‘The size of the catheter should be small enough so as not to occlude the artificial airway totally, thus avoiding excessive negative pressure.’
    • ‘Then to add totally to all my problems, my thyroid has overgrown and was occluding my throat.’
    • ‘Margaret's left internal carotid artery was completely occluded at its origin.’
    • ‘In ACS, the unstable plaque ruptures, thromboses, and occludes the artery, causing angina.’
    chunk, hunk, brick, slab, lump, piece
    View synonyms
    1. 1.1Shut in.
      ‘they were occluding the waterfront with a wall of buildings’
    2. 1.2Cover (an eye) to prevent its use.
      ‘it is placed at eye level with one eye occluded’
      • ‘He uses the finding of Wiesel and Hubel, that kittens reared with one eye occluded do not have binocular cells in the visual cortex, to support the converse of Hebb's postulate.’
      • ‘They fixated the center of the display while they occluded one eye with the ipsilateral hand.’
  • 2[no object] (of a tooth) come into contact with another tooth in the opposite jaw.

    ‘in monkeys and apes, the upper canine occludes with the lower first premolar’
    • ‘The anteriormost teeth are smaller than the more posterior ones, and the anterior upper teeth do not occlude with the anterior lower teeth.’
    • ‘The clear implication is that, at least in Idiognathodus, the teeth occluded in a regular and precise way.’
    • ‘Because only one tooth row can occlude at a time in goats, the bite point acts as a fulcrum.’
    • ‘The protocone and, if present, the hypocone of the upper molar occlude directly with this surface.’
    • ‘The peglike first upper molar does not occlude with any tooth of the lower jaw, so it serves no clear function.’
    • ‘This matching of the cusps allowed the teeth to occlude, or meet, in a precision bite.’
    • ‘It does occlude with this tooth in what appears to be a fully functional manner, and it retains the pattern of its cusps.’
    • ‘It consists of a pair of mandibular tooth plates that occludes with two pairs of plates above.’
  • 3Chemistry
    (of a solid) absorb and retain (a gas or impurity)

    ‘occluded within these crystals are other molecules’
    • ‘Moreover, once bound to a target protein, the scaffold could occlude the binding of other molecules that normally interact with the protein.’
    • ‘The core of the earth - 2150 miles in radius - is thought to be largely composed of iron with about 10 percent occluded hydrogen.’
    • ‘H2O molecules can be tightly bound to biological material and are occluded in proteins where they are often involved in catalytic reactions.’
    • ‘If the pore in the closed channel is occluded sterically, such a molecule should be unable to reach substituted cysteines below the gate.’
    • ‘Could the magmatic conditions at depth allow argon to be occluded within the minerals at the time of their formation?’

Origin

Late 16th century: from Latin occludere shut up.

Pronunciation:

occlude

/əˈkluːd/