secundine

noun Botany.

1. the inner integument of an ovule.

noun

1. botany rare one of the two integuments surrounding the ovule of a plant

n.“afterbirth,” from Late Latin secundinae (plural), from Latin secundae “the afterbirth,” shortened from secundae membranae, literally “the second membranes,” from secundus “second” (see second (adj.)). Related: Secundines.