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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Thu·ja n.  Bot. A genus of evergreen trees, thickly branched, remarkable for the distichous arrangement of their branches, and having scalelike, closely imbricated, or compressed leaves. [Written also thuya.] 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.
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From: Webster's Revised Unabridged Dictionary (1913)

 Ar·bor vi·tæ
 1. Bot. An evergreen tree of the cypress tribe, genus Thuja.  The American species is the Thuja occidentalis.  It is commonly used as an ornamental shrub around homes.
 2. Anat. The treelike disposition of the gray and white nerve tissues in the cerebellum, as seen in a vertical section.
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