cumulate
cumulate Applied to igneous intrusive rocks formed by the accumulation of crystals as a result of gravity settling. It is typical of layered intrusions and common in some differentiated meteorites. The early-formed minerals are called ‘cumulus’ minerals and show a regular variation in composition with their height in the intrusion. See MINERAL LAYERING.
cumulate
cumulate XVI. f. pp. stem of L. cumulāre, f. cumulus heap; see -ATE 3.
So cumulative XVII. cumulus heap, accumulation XVII; (meteor.) cloud of rounded masses heaped one on the other XIX.
So cumulative XVII. cumulus heap, accumulation XVII; (meteor.) cloud of rounded masses heaped one on the other XIX.
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accumulate , accumulate •circumvallate • bedplate • template •breastplate • nameplate • faceplate •chelate • fishplate • sibilate • jubilate •flagellate • legisla… Annihilate , annihilate •circumvallate • bedplate • template •breastplate • nameplate • faceplate •chelate • fishplate • sibilate • jubilate •flagellate • legisla… foliation , foliation A continuous, sub-planar rock fabric formed by the preferred orientation of minerals with a generally platy or tabular habit. The layers ar… agglomerate , agglomerate •serrate • concentrate • airfreight •ingrate • filtrate • arbitrate •exfiltrate • magistrate • orchestrate •calibrate • celebrate • emigr… Pendentive , pendentive (archit.) each of the spherical triangles formed by the intersection of a hemispherical dome by two pairs of opposite arches. XVIII. — F.… lact- , lact- stem of L. lac, lact- milk (cf. Gr. gála, galakt-; see GALAXY) in derivs.: lactation XVII(f. L. lactāre), lacteal XVII (f. L. lacteus), lacteou…
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