Date: 1858 the occurrence of two or more forms differently produced in the life cycle of a plant or animal usually involving the regular alternation of a sexual with an asexual generation
ALTERNATION OF GENERATIONS
Meaning of ALTERNATION OF GENERATIONS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012