annulation

From Latin annulātus +‎ -ation.^[1] Compare French annulation. Piecewise doublet of annullation.

• IPA^(key): /ˌænjʊˈleɪʃən/, /ˌænjəˈleɪʃən/

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annulation (plural annulations)

1. The formation of a ring
2. (organic chemistry) Any reaction that forms a ring of atoms
3. Any structure in the form of a ring

• unnational

Borrowed from Latin annūlātiōnem. By surface analysis, annuler +‎ -ation.

• IPA^(key): /a.ny.la.sjɔ̃/

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• Rhymes: -ɔ̃

annulation f (plural annulations)

1. cancellation, revocation

• “annulation”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012