【医】 [小脑]活树; 侧柏树

Thuja \Thu"ja\, n. [NL., from Gr. ? an African tree with
sweet-smelling wood.] (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 vit[ae]} of the
Eastern and Northern United States. {Thuja gigantea} of
North-waetern America is a very large tree, there
called {red cedar}, and {canoe cedar}, and furnishes a
useful timber.

{thuja oil}cedar leaf oil.


Arbor vitae \Ar"bor vi"t[ae]\ [L., tree of life.]
1. (Bot.) An evergreen tree of the cypress tribe, genus
{Thuja}. The American species is the {Thuja occidentalis}.

2. (Anat.) The treelike disposition of the gray and white
nerve tissues in the cerebellum, as seen in a vertical
section.