单词 | orthogon |
释义 | † ˈorthogon Obs. rare. Also in L. form orthoˈgonium and Gr. -ˈgonion. [ad. late L. orthogōnium, neuter of orthogōnius, a. Gr. ὀρθογώνιος right-angled; so F. orthogone (16th c. in Godef. Compl.). Cf. L. orthogōnium a rectangle (Isidore iii. xii. 2).] A right-angled triangle.
1570Billingsley Euclid i. def. xxvii. 5 An Orthigonium or a rightangled triangle, is a triangle which hath a right angle. 1612Peacham Gentl. Exerc. 17 The square will make you ready for all manner of compartments..your Cylinder for valted turrets, and round buildings; your Orthogonium and Pyramis, for sharp steeples. 1653H. More Conject. Cabbal. (1713) 221 The Orthogonion what a foundation it is of Trigonometry..every body knows that knows any thing at all in Mathematicks. |

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