Mĕs'o-spĕrm, n.
n. [Fr. mésosperme, from Gr. μέσος, middle, and σπέρμα, seed, from σπείρειν, to sow.] (Bot.) A membrane of a seed; — synonymous with secundine, the second membrane from the surface.
n. [Fr. mésosperme, from Gr. μέσος, middle, and σπέρμα, seed, from σπείρειν, to sow.] (Bot.) A membrane of a seed; — synonymous with secundine, the second membrane from the surface.