| arbor | A kind of latticework formed of, or covered with, vines, branches of trees, or other plants, for shade; a bower. Origin: OE. Herber, herbere, properly a garden of herbs, F. Herbier, fr. L. Herbarium. See Herb, and cf. Herbarium. 1. <botany> A tree, as distinguished from a shrub. 2. [Cf. F. Arbre. <mechanics> An axle or spindle of a wheel or opinion. A mandrel in lathe turning. Arbor Day, a day appointed for planting trees and shrubs. Origin: L, a tree, a beam. Source: Websters Dictionary (01 Mar 1998) |
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| arbor dianae | <chemistry> A precipitation of silver, in a beautiful arborescent form. Origin: L, the tree of Diana, or silver. Source: Websters Dictionary (01 Mar 1998) |
| arbor vitae | 1. <botany> An evergreen tree of the cypress tribe, genus Thuja. The American species is the T. Occidentalis. 2. <anatomy> The treelike disposition of the gray and white nerve tissues in the cerebellum, as seen in a vertical section. Origin: L, tree of life. Source: Websters Dictionary (01 Mar 1998) |
| arbor vitae uteri | The two longitudinal ridges, anterior and posterior, in the mucous membrane lining the cervix uteri, from which numerous secondary folds, or rugae, branch off. Synonym: plicae palmatae, arbor vitae uteri, lyra uterina. (05 Mar 2000) |
| arborary | Of or pertaining to trees; arboreal. Origin: L. Arborarius, fr. Arbor tree. Source: Websters Dictionary (01 Mar 1998) |
| arborator | One who plants or who prunes trees. Origin: L, fr. Arbor tree. Source: Websters Dictionary (01 Mar 1998) |
| arboreal | 1. Of or pertaining to a tree, or to trees; of nature of trees. 2. Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals. "Woodpeckers are eminently arboreal." (Darwin) Source: Websters Dictionary (01 Mar 1998) |
| arbored | Furnished with an arbor; lined with trees. "An arboreal walk." Source: Websters Dictionary (01 Mar 1998) |
| arboreous | 1. Having the form, constitution, or habits, of a proper tree, in distinction from a shrub. 2. Pertaining to, or growing on, trees; as, arboreous moss. Origin: L. Arboreous, fr. Arbor tree. Source: Websters Dictionary (01 Mar 1998) |
| arborescence | The state of being arborescent; the resemblance to a tree in minerals, or crystallizations, or groups of crystals in that form; as, the arborescence produced by precipitating silver. Source: Websters Dictionary (01 Mar 1998) |
| arborescent | <botany> Resembling a tree (applied to non-woody plants attaining tree height and to shrubs tending to become tree-like in size). Compare: dendroid. (09 Oct 1997) |
| arborescent cataract | An obsolete term for dendritic cataract. (05 Mar 2000) |
| arboret | A small tree or shrub. "Among thick-woven arborets, and flowers Imbordered on each bank." (Milton) Origin: OF. Arboret, dim. Of arbre tree, L. Arbor. Source: Websters Dictionary (01 Mar 1998) |
| arboretum | Origin: L, a place grown with trees. A place in which a collection of rare trees and shrubs is cultivated for scientific or educational purposes. Source: Websters Dictionary (01 Mar 1998) |
| arborical | Relating to trees. Source: Websters Dictionary (01 Mar 1998) |