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Definition of Hydrocaulus
1. n. The hollow stem of a hydroid, either simple or branched. See Illust. of Gymnoblastea and Hydroidea.
Definition of Hydrocaulus
1. Noun. (zoology) The hollow stem of a hydroid, either simple or branched. ¹
¹ Source: wiktionary.com
Medical Definition of Hydrocaulus
1.
Origin: NL, fr. Gr. "ydwr water + a stalk.