UROCHORDATE
\jˈʊ͡əɹəkˌɔːde͡ɪt], \jˈʊəɹəkˌɔːdeɪt], \j_ˈʊə_ɹ_ə_k_ˌɔː_d_eɪ_t]\
Definitions of UROCHORDATE
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primitive marine animal having a saclike unsegmented body and a urochord (a notochord) conspicuous in the larva
By Princeton University