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hardhead sponge
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noun
any of several commercial sponges, as Spongia officinalis dura, of the West Indies and Central America, having a harsh, fibrous, resilient skeleton.
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QUIZ YOURSELF ON "IS" VS. "ARE"
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Origin of hardhead sponge
First recorded in 1880–85
Words nearby hardhead sponge
hard-handed, hard hat, hardhead, hardheaded, hardheads, hardhead sponge, hardhearted, hard-hit, hard hitter, hard-hitting, Hardicanute
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022