[f. SPONGE sb.1 + -LET.]

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  1.  Bot. = SPONGIOLE 1.

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1835.  Lindley, Introd. Bot. (ed. 2), 36. The stigma and the spongelets of the roots.

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1841.  Florist’s Jrnl. (1846), II. 210. They will push forth sponglets into the moss.

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1870.  Academy, 12 March, 155. In the very first phases of vegetation where the primary spongelet … is clearly the absorbent of moisture.

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  2.  A small sponge.

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1887.  in Cassell’s Encycl. Dict.

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