self-pollinationPronunciation: /sɛlfpɒlɪˈneɪʃ(ə)n/Definition of self-pollination noun [mass noun] Botany the pollination of a flower by pollen from the same flower or from another flower on the same plant. Derivatives self-pollinated adjective self-pollinating adjective self-pollinator noun self-pollination in other Oxford dictionaries Definition of self-pollination in the US English dictionary