noun Thuja n. (Written also thuya) (Bot.) A genus of evergreen trees, thickly branched, remarkable for the distichous arrangement of their branches, and having scalelike, closely imbricated, or compressed leaves. See Thyine wood. Note: Thuja occidentalis is the Arbor vitae of the Eastern and Northern United States. Thuja gigantea of North-western America is a very large tree, there called red cedar, and canoe cedar, and furnishes a useful timber.
Collaborative International Dictionary of English 0.48
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