Definition of Onchidium
:a genus (the type of the family Onchidiidae) of chiefly Indo-Pacific marine air-breathing slugs that live chiefly on rocky shores between tide levels or in mangrove swamps
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Onchidium
noun
On·chid·i·um
\
äŋˈkidēəm
,
änˈ-
\
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Origin and Etymology of onchidium
New Latin, from onc- + -idium
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