Definition of Leptomedusae
: a suborder of the order Hydroida or in some classifications a separate order of Hydrozoa comprising coelenterates in which the hydranths and the productive zooids are protected by a theca, the medusae bear gonads on the radial canals, and the lithocysts when present are of ectodermal origin
leptomedusan\"+\ adjective or noun
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Origin and Etymology of leptomedusae
New Latin, from lept- + medusae (plural of medusa)
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