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单词 alternation of generations
释义

alternation of generations

noun phrase

: 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

Word History

First Known Use

1813, in the meaning defined above

Medical Definition

alternation of generations

noun

al·​ter·​na·​tion of generations
ˌȯl-tər-ˈnā-shən also ˌal-
: 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 but not infrequently consisting of alternation of a dioecious generation with one or more parthenogenetic generations
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更新时间:2024/11/11 5:11:14