Biquintile

[Lat. bis, and quintile, q. v.] ( Astron.) An aspect of the planets when they are distant from each other by twice the fifth part of a great circle, or 144°. Bir, or Beer, ( bir ,) (anc. Birtha ,) a town of Asiatic Turkey, on the Euphrates, 75 m. N.E. of Aleppo, and 38 W.S. W. of Orfa; Lat. 36° 59 N., Lon. 38° 7' 15" E. B. is the point at which travellers and caravans between Aleppo, on the one side, and Orfa, Diarbekr, ., on the other, cro the Euphrates. It is also the nearest point on the Euphrates to Iskanderoon, and has latterly become celebrated from its being the point at which Col. Chesney has proposed to begin and terminate the navigation of the Euphrates. - See EUPHRATES.