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διάμετρ-ος , ον,
A.diametrical: Astrol., diametrically opposed, Ptol.Tetr.115, Man.1.89.
II. Subst. δ. (sc. γραμμή), , diagonal of a parallelogram, Pl.Men.85b,al.; κατὰ δ. συντίθεσθαι, of triangles, by the hypotenuses, Id.Ti.54d; diameter of a circle, Arist.Cael.271a12, etc.; axis of a sphere, Id.MA699a29; diameter of other curves, Apollon.Perg.Con.1Def.1; axis of a conic, Archim.Aequil.2.10; κατὰ διάμετρον σύζευξις, of circles, Arist.EN1133a6; “τὰ κατὰ δ.Id.Cael.277a24; “κεῖσθαι κατὰ δ.Id.Mete.363a34, al.; κατὰ δ. κινεῖσθαι, of quadrupeds, which move the legs cross-corner-wise, as horses when trotting (opp. κατὰ πλευρὰν κινεῖσθαι ambling, in which the legs on either side move together), Id.HA490b4, IA712a25, cf. Plu. 2.43a; ἐκ διαμέτρου ἀντικείμενος, of planets, in opposition, PMag. Par.1.2221; “ἐκ διαμέτρου ἡμῖν οἱ βίοιLuc.Cat.14.
2. prob. mitre-square, Ar.Ra.801.
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hide References (5 total)
  • Cross-references in general dictionaries from this page (5):
    • Aristophanes, Frogs, 801
    • Plato, Meno, 85b
    • Plato, Timaeus, 54d
    • Lucian, Cataplus, 14
    • Claudius Ptolemy, Tetrabiblos, 115
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