Plural of antimere; multiple pairs of corresponding, mirror-image body parts in symmetrical organisms.
Regular English plural of antimere, maintaining the Greek root 'meros' (part). Used in comparative anatomy and evolutionary biology to discuss symmetrical structures.
When you study antimeres across species—how fish fins match tetrapod legs, how bird wings match arms—you're literally seeing evidence of evolution written into body plans. Darwin used these comparisons to prove all vertebrates shared common ancestors.
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