Definition of "columellar" []

• Of or pertaining to a columella. (adjective)

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• "During the maturation of the snail, the outer-basal tooth is resorbed; the adult snails retain only the columellar."
• "The red arrow in the right-hand picture is pointing at the columellar tooth."
• "The drawing below, showing the branches of the columellar muscle of Helix pomatia, is from the last volume of Libbie Hyman's incomplete series The Invertebrates, published in 1967 shortly before she died."