Gypsum, jip′sum, n. a valuable mineral of a comparatively soft kind, burned in kilns, and afterwards ground to a fine powder, called plaster of Paris.—adjs. Gyp′seous, of or resembling gypsum; Gypsif′erous, producing or containing gypsum. [L.,—Gr. gypsos, chalk.]
Gypsy, Gypsyism. See Gipsy.
Gyrate, jī′rāt, v.i. to whirl round a central point: to move round.—adj. (bot.) winding round.—n. Gyrā′tion, act of whirling round a central point: a spiral motion.—adjs. Gy′ratory, Gyrā′tional, moving in a circle. [L. gyrāre, -ātum, to move in a circle.]
Gyre, jīr, n. a circular motion.—n. Gy′ra, the richly embroidered border of a robe:—pl. Gy′ræ.—adjs. Gy′ral, whirling, rotating; Gyroid′al, spiral in arrangement or movement. [L. gyrus—Gr. gyros, a ring, round.]
Gyre-carlin, gīr-kar′lin, n. (Scot.) a witch. [Ice. gýgr, a witch, karlinna, a carline.]
Gyrfalcon. See Gerfalcon.
Gyromancy, jī′ro-man-si, n. divination by walking in a circle till dizziness caused a fall towards one direction or another. [Gr. gyros, a circle, manteia, divination.]
Gyron, Giron, jī′ron, n. (her.) a bearing consisting of two straight lines drawn from any given part of the field and meeting in an acute angle in the fesse-point.—adjs. Gyronnet′ty, Gyron′ny, Giron′ny. [Fr., acc. to Skeat, from the Old High Ger. gérun, accus. of géro, a spear, gér; cf. A.S. gár, a spear.]
Gyroscope, jī′ro-skōp, n. an instrument for the exhibition of various properties of rotation, and the composition of rotations.—adj. Gyroscop′ic. [Gr. gyros, a circle, skopein, to see.]
Gyrose, jī′rōs, adj. (bot.) turned round like a crook.