n. 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. adj. 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.] |
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