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hydromedusa

[hahy-droh-mi-doo-suh, -zuh, -dyoo-]
noun, plural hy·dro·me·du·sae [hahy-droh-mi-doo-see, -dyoo-] /ˌhaɪ droʊ mɪˈdu si, -ˈdyu-/.
  1. the medusa form of a hydrozoan.
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Origin of hydromedusa

From New Latin, dating back to 1885–90; see origin at hydra, -o-, medusa
Related formshy·dro·me·du·san, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for hydromedusa

hydromedusa

noun plural -sas or -sae (-siː)
  1. the medusa form of hydrozoan coelenterates
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Derived Formshydromedusan, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012