trihilate (trihilat)

+ NL. hilum + -ate1.] function, singly periodic action their read period: hila or scars, as a seed; - Trigonometrical survey, a survey by triangulation, tures, as a pollen-grain. especially, the cosine, tangent, or reciprocals. the measurement of base-lines, and astronomical observations of latitude, longitude, and azimuth. A trigo no met rical survey should be followed by a plane-table or other topographical survey; it is also important basis of adjunct to hydrographical, magnetic meteorological, geological, biological, political, anthropological, sociological, military, and other surveys. trigonometrically (trig"ō-nō-metʻri-kal-i), adv. In a trigonometrical manner; according to the rules or principles of trigonometry. An exact Map of all the Province of Attica, trigo no met rically surveyed. J. Stuart and N. Revett (Ellis's Lit. Letters, p. 383). trigonometry (trig-ō-nom'e-tri), n. [F. tri gonométrie = Sp. trigonometría = Pg. It. trigo nometria, trigo no me tri a , τρίγωνον , α triangle, + -μετρία, μέτρον , measure.] The mathematical doctrine of the calculation of the angles, sides, and areas of triangles, plane and spherical, together with that of other quantities intimately related to those. Trigonometry embraces also goniometry, or the elementary theory of singly periodic functions.