[ad. Gr. Εὐκλείδης.] A mathematician of Alexandria who flourished about 300 B.C.: hence, a. the works of Euclid, esp. the Elements (cf. ELEMENTS); b. a copy of the same.
1581. Mulcaster, Positions, xli. (1887), 241. [He] gave them a number of Euclides of his owne coast.
1665. J. Sergeant, Sure-footing, 163. To study my Book with that severity as they would do an Euclid.
1845. Stoddart, in Encycl. Metrop. (1847), I. 42/1. When we read Euclid, we find neither first person nor second in any part of his whole Work.
Mod. We dont approve of symbolical Euclids. They were examined in Algebra and Euclid.