Hydrotheca
Pronunciation : Hy`dro*the"ca, n.; pl. L. Hydrothec
Part of Speech : E.
Etymology : [NL., fr. E. hydra + Gr. (Zo?l.)
Definition : Defn: One of the calicles which, in some Hydroidea (Thecaphora), protect the hydrants. See Illust. of Hydroidea, and Campanularian.
Hydrothecas.
Source : Webster's Unabridged Dictionary, 1913