groining (groining)

[Verbal n. of groin1, v.] In arch.: (a) Any system of vaulting implying the intersection at any angle of simple vaults. The windows [of the Cathedral of Orvieto] are small and narrow, the columns round, and the roof displays none of that intricate groining we find in English churches. J. A. Symonds, Italy and Greece, p. 102. (b) The general scheme or plan of the groins in such a system of vaulting. (c) Same as groin1, 2.- Underpitch groining, a system of vaulting employed when the main vault of a groined roof is higher than the transverse intersecting vaults. St. George's Chapel, Windsor, England, furnishes an excellent example of this system. In England often called Welsh groining . groin-point (groin'point), п. term for the arris or line of intersection of two vaults where there are no ribs. groin-rib (groin'rib), n. 2631 Gromida. Gromiidea (grō-mi-id'ē-a), n. pl. [NL., rib masking a groin, or serving to support the groin; an ogive or are ogive. See groin1, п., 2, and are ogive, under arch. Grolier design. A style of decoration in bookbinding, consisting of bold lines of gold, cur i ously interlaced in geometrical forms, and in termixed with delicate leaves and sprays. Jean Grolier de Servier (1479-1565), from whom this style was named, was a French bibliophile eminent for his bindings. Matthew's "Guttenberg" Bible (bound) in dark brown levant, with a pure design inlaid with blue. Paper World, XIII. 16. grom1t, a. A Middle English variant of gramı and grum. grom2t, See groom1.