heterology

/ˌhɛdəˈrɑlədʒi/
noun
  1. A difference in structure, quality, or origin; lack of similarity or correspondence.
    • In her essay, she explored the heterology of cultural traditions across different regions.
    • The teacher explained the heterology of the two poems, noting their contrasting themes.
    • The heterology between the two species' bone structures surprised the biologists.
  2. In biology, a difference in form or function between parts that are otherwise similar in origin or position.
    • Students studied the heterology of insect mouthparts to understand feeding strategies.
    • The lab report focused on the heterology of leaf shapes within the same plant family.
    • The heterology of the forelimbs in mammals shows how evolution adapts structures for different uses.
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