Word Study
terrane
CIDE DICTIONARY
terrane, n. [F. terrain, from L. terra earth.].
A group of rocks having a common age or origin; -- nearly equivalent to formation, but used somewhat less comprehensively. [1913 Webster]
terrane, n.
A region or limited area considered with reference to some special feature; as, the terrane of a river, that is, its drainage basin. [Webster 1913 Suppl.]
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