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Massif

//mæˈsiːf// noun

Noun

1
A principal mountain mass.
"This is itself a cheerless spot, particularly on a rainy day, when, overshadowed by the great massif of rock that towers in the background, and surrounded by the grey and cheerless quarries, it has a depressing character much in contrast with the green verdure encountered on the northern end of this interesting branch line."
2
a block of the earth's crust bounded by faults and shifted to form peaks of a mountain range wordnet
3
A block of the earth's crust bounded by faults or flexures and displaced as a unit without internal change; normally consists of gneisses and schists.
"The southern borders of these states are keyed to the same horizontal projection, one surveyed by the frontier planter William Byrd in 1728, while the rivers forming their northern extents fall back just opposite each other from the flanks of the Appalachian massif."

Borrowed from French massif, from Middle French massif, ultimately from Latin massa, from Ancient Greek μᾶζα (mâza, “barley-cake, lump (of dough)”).

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