osculate

osculate
[ˈɒskjʊleɪt]
verb
[with obj.]
  1. (Mathematics)(of a curve or surface) touch (another curve or surface) so as to have a common tangent at the point of contact
    (数)（曲线或面）与（另一曲线或面）互成密切
    [as adj. osculating]the plots have been drawn using osculating orbital elements.
    图表用密切轨迹元素画成。
  2. (formal or humorous)kiss
    (正式或 幽默)亲吻
派生
osculant
adjective
osculation
noun
osculatory
adjective
语源
  1. mid 17th cent.: from Latin osculat- 'kissed', from the verb osculari, from osculum 'little mouth or kiss'
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