cross-fertilization; allogamy
Biology term for fertilization between different individuals, as opposed to self-fertilization (自家受精).
See also: 自家受精
Cross-fertilization increases genetic diversity.
自家受精 is self-fertilization, while 他家受精 is cross-fertilization between different individuals.
Compound of 他家 (たか, 'another family' or 'different individual') and 受精 (じゅせい, 'fertilization').