French

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French Wikipedia has an article on:
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Pronunciation

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  • IPA(key): /də.mi.ɡʁɑ̃.t‿aks/

Noun

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demi-grand axe m (plural demi-grands axes)

  1. (geometry) semimajor axis (half of the major axis of a circle or ellipse)
    Coordinate term: demi-petit axe