urochord

urochord

(ˈjʊərəʊˌkɔːd) n (Zoology) the notochord of a larval tunicate, typically confined to the tail regionn, adj (Animals) Also: urochordate another word for tunicate[C19: from uro-² + chord, a variant of cord] ˌuroˈchordal adj

u•ro•chord

(ˈyʊər əˌkɔrd)

n. a notochord that is chiefly confined to the tail region, present in the larval stage of tunicates. [1875–80] u`ro•chor′dal, adj.

Thesaurus

Noun

1.urochord - primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larvatunicate, urochordatechordate - any animal of the phylum Chordata having a notochord or spinal columnsubphylum Tunicata, subphylum Urochorda, subphylum Urochordata, Tunicata, Urochorda, Urochordata - tunicatesascidian - minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leavessalp, salpa - minute floating marine tunicate having a transparent body with an opening at each enddoliolum - free-swimming oceanic tunicate with a barrel-shaped transparent bodylarvacean - any member of the class Larvaceaappendicularia - free-swimming tadpole-shaped pelagic tunicate resembling larvae of other tunicates

2.urochord - a notochord of a larval tunicate typically confined to the caudal regionnotochord - a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates