Definition of tunicate in English:

tunicate

noun

Zoology
  • A marine invertebrate of a group which includes the sea squirts and salps. They have a rubbery or hard outer coat and two siphons to draw water into and out of the body.

    • ‘The hull here is rich in marine life - hydroids, tunicates, anemones and sponges.’
    • ‘Many tunicates have a larva that is free-swimming and exhibits all chordate characteristics: it has a notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail.’
    • ‘Are there potential uses for antimicrobial peptides from tunicates?’
    • ‘Sea squirts are tunicates, a type of sea life with a primitive spinal cord and a firm, flexible outer covering called a ‘tunic,’ from which the name derives.’
    • ‘The hull is covered with more long and delicate plumose anemones, some large white tunicates and forests of featherworms projecting into the negligible current on their long stalks.’

adjective

also tunicated
Botany
  • (of a plant bulb, e.g. an onion) having concentric layers.

Origin

Mid 18th century: from Latin tunicatus, past participle of tunicare ‘clothe with a tunic’, from tunica (see tunica).

Pronunciation

tunicate

/ˈtjuːnɪkeɪt//ˈtjuːnɪkət/