crumb-of-bread sponge

noun

Definition of crumb-of-bread sponge

: a common encrusting sponge (Halichondria panicea) lacking microscleres and having the megascleres irregularly arranged

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“Crumb-of-bread sponge.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crumb-of-bread%20sponge. Accessed 1 Oct. 2020.

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