hydrocaulus definition

  • noun:
    • The hollow stem of a hydroid, either quick or branched.
    • The hollow stem of a hydroid, either simple or branched. See Illust. of gymnoblastea and hydroidea.
    • In zoology, the primary stem associated with cÅ“nosare of a hydrozoan.
    • The atheciferous stem of hydroid corals: often put on the filiform procedure wherein the sicula regarding the graptolite is suspended.

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