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Noun urochord has 2 senses
  1. tunicate, urochordate, urochord - primitive marine animal having a saclike unsegmented body and a urochord (a notochord) conspicuous in the larva
    --1 is a kind of chordate
    --1 is a member of
     Urochordata, subphylum Urochordata, Urochorda, subphylum Urochorda, Tunicata, subphylum Tunicata
     --1 has particulars:
     ascidian; salp, salpa; doliolum; larvacean; appendicularia
  2. urochord - a notochord of a larval tunicate typically confined to the caudal region
    --2 is a kind of     notochord
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