umbrella shell

noun

Definition of umbrella shell

: a marine gastropod of Umbracula or a related genus having a large thick foot, small head, and small external shell resembling that of a limpet and only partly covering the body

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“Umbrella shell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/umbrella%20shell. Accessed 2 Dec. 2020.

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