a. [f. L. arbor + -AL 1.] Pertaining to, or of the nature of, trees; = ARBOREAL 1.

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1657.  Tomlinson, Renou’s Disp., 150. All suaveolent flowers, whether herbal…; or arbustal or arboral.

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1867.  Athenæum, 26 Oct., 541/3. This tree … has … very little arboral character.

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