Definition of dichogamy in English:

dichogamy

noun

Botany
  • [mass noun] The ripening of the stamens and pistils of a flower at different times, so that self-fertilization is prevented.

    Compare with homogamy
    • ‘Although dichogamy is considered an important factor influencing gender expression, its roles in promoting the evolution of gender specialization are still poorly understood.’
    • ‘This suggests that weak dichogamy occurs in this species unless stigma maturation is delayed by the retention of self-pollen.’
    • ‘However, the form of dichogamy (protogyny and protandry) is likely to have different consequences for autogamy versus geitonogamy.’
    • ‘Flowering plants have several mechanisms that have evolved to prevent self-fertilization, e.g. self-incompatibility systems, heterostyly and dichogamy.’
    • ‘However, if flowering is asynchronous and the behaviour of individual pollinators does not follow a regular pattern within a plant, dichogamy might have little effect on reducing geitonogamy.’

Origin

Mid 19th century: from Greek dikho- apart, in two + gamos marriage.

Pronunciation:

dichogamy

/dʌɪˈkɒɡəmi/