Definition of postmature in English:

postmature

adjective

  • 1Obstetrics. Of an infant: born after a pregnancy lasting significantly longer than normal; post-term. Of labour or birth: occurring after such a pregnancy.

  • 2Relating to or designating a person or animal over the age of maturity; (Biology) relating to or designating an organism, cell, or other structure undergoing development which has passed the age or point of maturity.

Origin

Late 19th century. From post- + mature, after premature.

Pronunciation

postmature

/ˌpəʊs(t)məˈtjʊə//ˌpəʊs(t)məˈtʃʊə/