[f. SPONGE sb.1 + -LET.]
1. Bot. = SPONGIOLE 1.
1835. Lindley, Introd. Bot. (ed. 2), 36. The stigma and the spongelets of the roots.
1841. Florists Jrnl. (1846), II. 210. They will push forth sponglets into the moss.
1870. Academy, 12 March, 155. In the very first phases of vegetation where the primary spongelet is clearly the absorbent of moisture.
2. A small sponge.
1887. in Cassells Encycl. Dict.