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coniferophyte
coniine
conj
conjecture
conjoin
conjoined twin
conjoint
conjugal
conjugal rights
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conic section
con·ic sec·tion (plural con·ic sec·tions)


noun 
Definition:
 
geometric curve formed by cutting cone: a curve produced by the intersection of a plane with a circular cone, e.g. a circle, ellipse, hyperbola, or parabola
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