单词	metamere
释义	metamere noun meta·​mere ˈme-tə-ˌmir  : any of a linear series of primitively similar segments into which the body of a higher invertebrate or vertebrate is divisible Word History Etymology International Scientific Vocabulary First Known Use 1876, in the meaning defined above Medical Definition metamere noun meta·​mere ˈmet-ə-ˌmi(ə)r  : any of a linear series of primitively similar segments into which the body of a higher invertebrate or vertebrate is divisible and which are usually clearly distinguishable in the embryo, identifiable in somewhat modified form in various invertebrates (as annelid worms), and detectable in the adult higher vertebrate only in specialized segmentally arranged structures (as cranial and spinal nerves or vertebrae) : somite
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