What is the meaning of Tunicate?

Any of very many chordate marine animals, of the subphyla Tunicata or Urochordata, including the sea squirts.

Of or pertaining to these animals.

Enclosed in a tunic or mantle; covered or coated with layers.

Having each joint buried in the preceding funnel-shaped one, as in certain antennae of insects.

vocative masculine singular of tunicātus

second-person plural present active imperative of tunicō

Source: wiktionary.org