Definition of microphyte in English:

microphyte

Pronunciation /ˈmʌɪkrə(ʊ)fʌɪt/

noun

Biology
  • Any microscopic or very small organism considered (or at one time considered) to belong to the plant kingdom; especially a microscopic alga. Compare "microzoary", microzoon .

Origin

Mid 19th century; earliest use found in David Page (1814–1879), geologist and author. From micro- + -phyte.