Emily Dickinson Lexicon
Definition for SEM-I-OR'DIN-ATE
SEM-I-OR-BIC'U-LARSEM-I-OS'SE-OUS
SEM-I-OR'DIN-ATE, n. [semi and ordinate.]
In conic sections, a line drawn at right angles to and bisected by the axis, and reaching from one side of the section to the other; the half of which is properly the semi-ordinate, but is not called the ordinate.
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