1 hydrotheca | Definition of hydrotheca
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hydrotheca

noun
hy·​dro·​the·​ca

Definition of hydrotheca

: a cup-shaped extension of the perisarc in hydroids of the group Leptomedusae that surrounds and protects the hydranths when they are contracted

Other Words from hydrotheca

hydrothecal \ ¦⸗⸗¦thēkəl \ adjective

History and Etymology for hydrotheca

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

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