tunicate

 
Pronunciation: /ˈtjuːnɪkət, -keɪt/

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.
    • Subphylum Urochordata: three classes

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)