Source : Webster's Revised Unabridged Dictionary (1913)

Spongiole \Spon"gi*ole\ (?; 277), n. [L. spongiola a rose gall,
   small roots, dim. of spongia: cf. F. spongiole.] (Bot.)
   A supposed spongelike expansion of the tip of a rootlet for
   absorbing water; -- called also {spongelet}.