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hydrotheca

American  
[hahy-druh-thee-kuh] / ˌhaɪ drəˈθi kə /

noun

Zoology.

plural

hydrothecae

  1. the part of the perisarc covering a hydranth.

Other Word Forms

  • hydrothecal adjective

Etymology

Origin of hydrotheca

From New Latin, dating back to 1870–75; see origin at hydro- 1, theca

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.