| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024tu•ni•cate (to̅o̅′ni kit, -kāt′, tyo̅o̅′-),USA pronunciation n. - Zoologyany sessile marine chordate of the subphylum Tunicata (Urochordata), having a saclike body enclosed in a thick membrane or tunic and two openings or siphons for the ingress and egress of water.
adj. Also, tu′ni•cat′ed. - (esp. of the Tunicata) having a tunic or covering.
- Zoologyof or pertaining to the tunicates.
- Botanyhaving or consisting of a series of concentric layers, as a bulb.
- Latin tunicātus wearing a tunic. See tunic, -ate1
- 1615–25
Collins Concise English Dictionary © HarperCollins Publishers:: tunicate /ˈtjuːnɪkɪt -ˌkeɪt/ n - any minute primitive marine chordate animal of the subphylum Tunicata (or Urochordata, Urochorda). The adults have a saclike unsegmented body enclosed in a cellulose-like outer covering (tunic) and only the larval forms have a notochord: includes the sea squirts
adj
Also: tunicated - (esp of a bulb) having or consisting of concentric layers of tissue
Etymology: 18th Century: from Latin tunicātus clad in a tunic |