Definition of microperthitic in US English:

microperthitic

adjective

Mineralogy
  • Having the structure characteristic of microperthite.

Origin

Late 19th century; earliest use found in Nature: a weekly journal of science. From microperthite + -ic.

Pronunciation

microperthitic

/ˌmʌɪkrə(ʊ)pəːˈθɪtɪk/