self-pollination vs. cross-pollination

the transfer of pollen from the anther to the stigma of the same flower, another flower on the same plant, or the flower of a plant of the same clone.

Botany. the transfer of pollen from the flower of one plant to the flower of a plant having a different genetic constitution. Compare self-pollination.

a sharing or interchange of knowledge, ideas, etc., as for mutual enrichment; cross-fertilization.