osculation

From Latin ōsculātiō (“a kissing”), from osculor (“I kiss”).

• (Received Pronunciation) IPA^(key): /ˌɒs.kjʊˈleɪ.ʃən/, /ˌɒs.kjəˈleɪ.ʃən/
• (General American) IPA^(key): /ˌɑs.kjuˈleɪ.ʃən/, /ˌɑs.kjəˈleɪ.ʃən/

• Audio (US)

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• Rhymes: -eɪʃən

osculation of a circle and a curve C

osculation (countable and uncountable, plural osculations)

1. The action of kissing
2. A kiss
3. A close contact
4. (mathematics) A contact between curves or surfaces, at which point they have a common tangent
5. (Vedic arithmetic) Determining whether a number is divisible by another by means of certain operations on its digits.

• oscular
• osculate
• osculatory
• osculum