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单词 dimorphic
释义

Definition of dimorphic in English:

dimorphic

adjective dʌɪˈmɔːfɪkdaɪˈmɔrfɪk
Biology
  • Occurring in or representing two distinct forms.

    in this sexually dimorphic species only the males have wings
    Example sentencesExamples
    • The model is applicable more generally in species that have dimorphic males, such as some other ants, bees, and fig wasps.
    • In Drosophila, one of the most evident dimorphic traits is represented by the body size, with males being smaller than females.
    • The ontogeny and dimorphic features of many early Middle Ordovician ostracode species are still poorly known.
    • Several pieces of direct and indirect evidence suggest that dimorphic sex chromosomes have evolved from an originally homologous pair of chromosomes.
    • This could be tested by comparing winter social systems and degree to which sex ratios are skewed in sexually monomorphic species versus sexually dimorphic species.

Derivatives

  • dimorphism

  • noun dʌɪˈmɔːfɪz(ə)mdaɪˈmɔrfɪzəm
    Biology
    • However, the degree of dimorphism in some clades of mammals, including perissodactyls, does not correlate with the degree of polygyny.
      Example sentencesExamples
      • Thus, general patterns relating variation in male and female reproductive success to sexual size dimorphism in mammals remain unclear.
      • We used the relative degree of sexual size dimorphism in taxa as an approximate indicator of relative strength of sexual selection in this study.
      • I then present a formal model for the evolution of recombination dimorphism on autosomes and on sex chromosomes.
      • Sex chromosomes in M. violaceum were identified by the cosegregation of mating type and chromosome dimorphism and by mating-type-specific markers.

Origin

Mid 19th century: from Greek dimorphos (from di- 'twice' + morphē 'form') + -ic.

 
 

Definition of dimorphic in US English:

dimorphic

adjectivedīˈmôrfikdaɪˈmɔrfɪk
Biology
  • Occurring in or representing two distinct forms.

    in this sexually dimorphic species only the males have wings
    Example sentencesExamples
    • The ontogeny and dimorphic features of many early Middle Ordovician ostracode species are still poorly known.
    • This could be tested by comparing winter social systems and degree to which sex ratios are skewed in sexually monomorphic species versus sexually dimorphic species.
    • Several pieces of direct and indirect evidence suggest that dimorphic sex chromosomes have evolved from an originally homologous pair of chromosomes.
    • The model is applicable more generally in species that have dimorphic males, such as some other ants, bees, and fig wasps.
    • In Drosophila, one of the most evident dimorphic traits is represented by the body size, with males being smaller than females.

Origin

Mid 19th century: from Greek dimorphos (from di- ‘twice’ + morphē ‘form’) + -ic.

 
 
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更新时间:2024/11/13 13:35:47