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; ἡ 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,