noun
Technical term in biology and genetics referring to reduced fitness in a population due to inbreeding.
自殖弱勢は、近親交配によって集団の適応度が低下する現象です。
Inbreeding depression is a phenomenon where the fitness of a population decreases due to inbreeding.
Compound of 自殖 (self-breeding, inbreeding) and 弱勢 (weakening, decline). The exact historical derivation is uncertain; the term is a modern scientific coinage.