[CO- 3 a: of U. S. origin.] Education of the two sexes together in school or college.

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1874.  E. H. Clarke, Sex in Educ., 123. In these pages, co-education of the sexes is used in its common acceptation of identical co-education.

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1874.  S. W. Higginson, ibid. 37. Any physiologist opposed to co-education.

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  Hence Co-educational a.

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1881.  Williamsport (Pa.) Sun & Banner, VIII. No. 3. 1. It is a co-educational school.

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