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1. Oxford American Dictionary

   elongation

   • IPA[əˌlôNGˈɡāSH(ə)n]

   美式

   • n.
     the lengthening of something.；a part of a line formed by lengthening; a continuation.

   • noun: elongation, plural noun: elongations

2. • 釋義

   n.

   名詞

   • 1. the lengthening of something.
   • ▪ a part of a line formed by lengthening; a continuation.
   • ▪ the amount of extension of an object under stress, usually expressed as a percentage of the original length.
   • ▪ the angular separation of a planet from the sun or of a satellite from a planet, as seen by an observer.
3. • 更多解釋

   elongation

   • IPA[ˌiːlɒŋˈɡeɪʃn]

   英式

   • n.
     the action or process of lengthening something: the bird's tails become forked through elongation of their outer feathers an elongation of the crater in the impact direction

   Oxford Dictionary