From Wiktionary, the free dictionary
From post- + genital.
postgenital (not comparable)
- (anatomy) Behind the genital region.
- (botany) Appearing as an organism matures.
2010, Klaus Kubitzki, Flowering Plants. Eudicots: Sapindales, Cucurbitales, Myrtaceae, page 279:The carpels show various degrees of congenital or postgenital connation (Gut 1966; Ramp 1988).