Definition of sesqui- in English:


Syllabification: sesqui-

combining form

  • 1Denoting one and a half: sesquicentenary
  • 1.1 Chemistry (Of a compound) in which a particular element or group is present in a ratio of 3:2 compared with another: sesquioxide


from Latin semi- (see semi-) + -que 'and'.

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Pronunciation: ˌastrəˈgāSHən
(in science fiction) navigation in outer space