triangular

[Fr. triangulaire, from Lat. triangular is, from triangulus =having three angles.] [TRIANGLE.] 1. Ord . Lang .: Having three angles; having the form of a triangle; pertaining to a triangle. "The city it selfe in forme represent eth a triangular figure."-Hackluyt: Voyages , iii. 118. IMG:content-1413.png:[blocks in formation] 1. Ord . Language : To make triangular or three cornered. 2. Surv.: Τo divide into triangles; to survey by dividing into triangles. B. In trans.: To survey by the method of triangulation. "Engineers were often compelled to triangulate from the opposite side to mark out the course of the road." Scribner's Magazine , Aug., 1877, p. 455. tri-ăn-gu-lā-tion, s. [TRIANGULATE.] *1. Ord. Lang.: The act of triangulating; the reduction of an area to triangles. 2. Survey.: The operation of measuring the elements nece ary to determine the triangles into which the country to be surveyed is supposed to be divided. The term is principally used in geodesic surveying. [TRIANGLE, 9.] *tri-ăn-gu-161d, a . [Latin triangul ( us )=three cornered, and Gr. eidos =form, appearance.] Somewhat resembling a triangle in shape. Tri-ăn-gu-lăŭm, s. [Mod. Lat., from Lat. tri an gul us =a triangle.] Astronomy: The Triangle; one of the forty-eight ancient constellations. It is of small size, and is situated southeast of Andromeda, north of Aries, and west of Perseus. The largest star, Alpha Trianguli, is only of the third magnitude. Triangulum-australe, s. Astron.: The Southern Triangle; a southern constellation of small size, but having the three stars which define it so prominent that they are sometimes called the Triangle stars. The constellation is between Pavo and Centaur us. *Triangulum-minus, s. Astron.: The Le er Triangle; an obsolete con stell at i on of small size between Triangulum (q. v.) and Aries. It was established by Hevelius. tri-a-no-sper-mą, s. [Gr. tri anōr =she that has three husbands, and sperm a =seed.] Bot.: A genus of Cucurbitese, akin to Bryonia, but having only three seeds. They are climbing plants, tri an them a with tendrils and moncecious flowers. Stamens three, ovary three-celled. Fruit globular, fleshy. Natives of the West Indies and Brazil. Triano sperm a ficifolia , called also Bryonia ficifolia , is an active purgative, and said to be a purifier of the blood. T. tayuya is given in Brazil in small doses as an emetic, and in large ones as a purgative.