Quad·ra·trix n.; pl. -trixes or -trices Geom. A curve made use of in the quadrature of other curves; as the quadratrix, of Dinostratus, or of Tschirnhausen.
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Sep·a·ra·trix n.; pl. L. -trices E. -trixes Arith. The decimal point; the dot placed at the left of a decimal fraction, to separate it from the whole number which it follows. The term is sometimes also applied to other marks of separation.
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Im·pro·pri·a·trix n.; pl. E. -trixes, L. -trices A female impropriator.
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