A-cŏt'/y-lē'don, n.

n. [N. Lat. acotyledo, sc. planta, from Gr. ἀ priv. and κοτυληδών, a hollow knob or button, from κοτύλη, any thing hollow; Fr. acotylédone.] (Bot.) A plant in which the seed-lobes, or cotyledons, are not present. Gray.