v. t.
n. Arrangement in a group or in groups; grouping. [ 1913 Webster ]
n. See Aggroupment. [ 1913 Webster ]
n. (Chem.) a monovalent organic radical (written
(Geol.) A subdivision of the cretaceous formation of western North America, especially developed in Colorado and the upper Missouri region. [ 1913 Webster ]
. [ From Congo red. ] A group of artificial dyes with an affinity for vegetable fibers, so that no mordant is required. Most of them are azo compounds derived from benzidine or tolidine. Called also
benzidine dyes
(Geol.) A subdivision at the base of the cretaceous formation in Western North America; -- so named from the region where the strata were first studied. [ 1913 Webster ]
n. [ F groupe, It. gruppo, groppo, cluster, bunch, packet, group; of G. origin: cf. G. kropf craw, crop, tumor, bunch. See Crop, n. ]
v. t.
The difficulty lies in drawing and disposing, or, as the painters term it, in grouping such a multitude of different objects. Prior. [ 1913 Webster ]
Grouped columns (Arch.),
adj. arranged into groups, each having some feature in common.
n. [ Corrupted fr. Pg. garupa crupper. Cf. Garbupa. ] (Zool.)
n. (Fine Arts) The disposal or relative arrangement of figures or objects, as in, drawing, painting, and sculpture, or in ornamental design. [ 1913 Webster ]
[ So called from
pos>n. (Geol.) An extensive series of strata, principally developed in the Rocky Mountain region, as in the
. (Geol.) A series of strata in the lower Silurian formations of Great Britain; -- so named from Llandeilo in Southern Wales. See Chart of Geology. [ 1913 Webster ]
pos>n. (Geol.) A subdivision of the British Upper Silurian lying below the Old Red Sandstone; -- so named from the
adj. Of or pertaining to marriage outside a class or tribe, in cultures where that is required by custom or law.
[ So called from the township of Portage in New York. ] (Geol.) A subdivision of the Chemung period in American geology. See Chart of Geology. [ 1913 Webster ]
(Geol.) A subdivision of the Primordial or Cambrian period in American geology; -- so named from the sandstone of
(Geol.) The middle of the three groups into which the rocks of the Canadian period have been divided in the American Lower Silurian system. See the Chart of Geology. [ 1913 Webster ]
n. (Biol.) A subdivision of a group, as of animals. Darwin. [ 1913 Webster ]
(Geol.) The middle subdivision of the Upper Silurian in Great Britain; -- so named from the typical locality in Shropshire. [ 1913 Webster ]