The Collaborative International Dictionary
Tercine
Tercine \Ter"cine\, n. [F., from L. tertius the third.] (Bot.) A cellular layer derived from the nucleus of an ovule and surrounding the embryo sac. Cf. Quintine.
Wiktionary
tercine
n. (context botany English) A cellular layer derived from the nucleus of an ovule and surrounding the embryo sac.