secants
plural of gliotoxin
(mineralogy) An orthorhombic-dipyramidal mineral containing chlorine, hydrogen, lead, and oxygen.
plural of secant
plural of antedation
2本の円に2点で交わる直線が円の外で交わるとき、外側の線分の長さとその直線の全長の積はもう一方の直線の積と等しくなります。
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