hydrotheca

noun

hy·​dro·​the·​ca
: a cup-shaped extension of the perisarc in hydroids of the group Leptomedusae that surrounds and protects the hydranths when they are contracted
hydrothecal
¦⸗⸗¦thēkəl
adjective

Word History

Etymology

New Latin, from hydr- + Latin theca sheath, case

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Cite this Entry

“Hydrotheca.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrotheca. Accessed 7 Feb. 2023.

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