Rad"i*cle (?), n. [L. radicula, dim. of radix, -icis, root: cf. F. radicule. See Radix.] Bot. (a)
The rudimentary stem of a plant which supports the cotyledons in the seed, and from which the root is developed downward; the stem of the embryo; the caulicle.
A rootlet; a radicel.
© Webster 1913.