cli·on·i·dae
klīˈänəˌdē,
-īˈōn-
capitalized
: a family (order Hadromerina) of small sponges with monaxon spicules that bore in shells and soft limestone rocks see cliona
"
capitalized
: a family of naked pteropod mollusks comprising forms intermediate in many characters between typical pteropods and nudibranchs
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Merriam-Webster unabridged
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