Spōn'gi-ōle, n.

(Synop., § 130), n. [Fr. spongiole, Lat. spongiola, diminutive of spongia. See SPONGE.] (Bot.) An expansion of minute parts, formerly supposed to exist at the termination of radicles, resembling a sponge, for absorbing the nutriment of plants;—called also spongelet.