tunicate(redirected from Mass of sea squirts)
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tu·ni·cate(to͞o′nĭ-kĭt, -kāt′, tyo͞o′-)
Any of various chordate marine animals of the subphylum Urochordata (or Tunicata), having a cylindrical or globular body enclosed in a tough outer covering and a notochord in the larval stage, and including the sea squirts and salps.
1. Of or relating to the tunicates.
2. Anatomy Having a tunic.
3. Botany Having a tunic, as the bulb of an onion.
[Latin tunicātus, past participle of tunicāre, to clothe with a tunic, from tunica, tunic; see tunic.]
(Animals) 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. See also ascidian
1. (Animals) of, relating to, or belonging to the subphylum Tunicata
2. (Botany) (esp of a bulb) having or consisting of concentric layers of tissue
[C18: from Latin tunicātus clad in a tunic]
tu•ni•cate(ˈtu nɪ kɪt, -ˌkeɪt, ˈtyu-)
1. any marine chordate of the subphylum Tunicata (or Urochordata), having a saclike body enclosed in a thick membrane or tunic: includes ascidians and salps.adj.
2. (esp. of the Tunicata) having a tunic or covering.
3. of or pertaining to the tunicates.
4. Bot. having or consisting of a series of concentric layers, as a bulb.Also, tu′ni•cat`ed.
Any of various primitive marine chordate animals having a rounded or cylindrical body that is enclosed in a tough outer covering. Tunicates start out life as free-swimming tadpole-like animals with a notochord (a primitive backbone), but many, such as the sea squirts, lose the notochord and most of their nervous system as adults and become fixed to rocks or other objects.
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|Noun||1.||tunicate - primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva|
chordate - any animal of the phylum Chordata having a notochord or spinal column
subphylum Tunicata, subphylum Urochorda, subphylum Urochordata, Tunicata, Urochorda, Urochordata - tunicates
ascidian - minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves
doliolum - free-swimming oceanic tunicate with a barrel-shaped transparent body
larvacean - any member of the class Larvacea
appendicularia - free-swimming tadpole-shaped pelagic tunicate resembling larvae of other tunicates