单词	dimorphism
释义	dimorphism noun di·​mor·​phism (ˌ)dī-ˈmȯr-ˌfi-zəm  : the condition or property of being dimorphic or dimorphous: such as a : the existence of two different forms (as of color or size) of a species especially in the same population sexual dimorphism b : the existence of a part (such as leaves of a plant) in two different forms Example Sentences Recent Examples on the Web The reason why honeybees use such a sophisticated and intricate mechanism to regulate the queen–worker dimorphism is a puzzle. Chao Yan, Scientific American, 17 June 2020 Hunt believes knowledge of the adverse effects of dimorphism could help us better predict and prepare for species endangerment down the road. Ryan P. Smith, Smithsonian, 16 Apr. 2018 Phylogenetic analyses of sexual selection and sexual size dimorphism in pinnipeds. Darren Naish, Scientific American Blog Network, 3 June 2017 This is a classic example of what biologists call sexual dimorphism—the two sexes of the same species exhibit differences in form or behavior. Smithsonian, 22 Mar. 2017 Word History First Known Use 1832, in the meaning defined above Medical Definition dimorphism noun di·​mor·​phism -ˌfiz-əm  : the condition or property of being dimorphic or dimorphous: as a(1) : the existence of two different forms (as of color or size) of a species especially in the same population (2) : the existence of an organ in two different forms b : crystallization of a chemical compound in two different forms
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