单词 | latus rectum |
释义 | latus rectum /lay"teuhs rek"teuhm/, pl. latera recta /lay"teuhr euh rek"teuh/. Geom. the chord perpendicular to the principal axis and passing through a focus of an ellipse, parabola, or hyperbola. [1695-1705; < NL: lit., straight side] |
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