DICT.TW Dictionary Taiwan
18.118.166.45

Search for:
[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Hy·dro·the·ca n.; pl. L. Hydrothecæ E. Hydrothecas   Zool. One of the calicles which, in some Hydroidea (Thecaphora), protect the hydrants. See Illust. of Hydroidea, and Campanularian.