Definition of micropopulation in English:

micropopulation

Pronunciation /ˌmʌɪkrə(ʊ)ˌpɒpjʊˈleɪʃn/

noun

  • 1The population of microorganisms present in a given location, organism, etc.

  • 2A sub-population; a small or specialized population.

Origin

1920s; earliest use found in Philosophical Transactions of the Royal Society of London. From micro- + population, in sense 1 after microorganism.