latus rectum

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latus rectum

(ˈlɑːtəs ˈrɛktəm)
n, pl latera recta (ˈlætərə ˈrɛktə)
(Mathematics) geometry a chord that passes through the focus of a conic and is perpendicular to the major axis
[C18: New Latin: straight side]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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