| 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) |
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| 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) |
| arboricole | <ornithology> Tree-inhabiting; said of certain birds. Origin: L. Arbor + colere to inhabit. Source: Websters Dictionary (01 Mar 1998) |
| arboriculture | The cultivation of trees and shrubs, chiefly for timber or for ornamental purposes. Origin: L. Arbor tree + cultura. See Culture. Source: Websters Dictionary (01 Mar 1998) |
| arboriculturist | One who cultivates trees. Source: Websters Dictionary (01 Mar 1998) |
| arborise | To spread in a treelike branching pattern. (05 Mar 2000) |
| arborist | One who makes trees his study, or who is versed in the knowledge of trees. Origin: F. Arboriste, fr. L. Arbor tree. Source: Websters Dictionary (01 Mar 1998) |
| arborization | The appearance or figure of a tree or plant, as in minerals or fossils; a dendrite. Origin: Cf. F. Arborisation, fr. L. Arbor tree. Source: Websters Dictionary (01 Mar 1998) |
| arborization block | Intraventricular block supposedly due to widespread blockage in the Purkinje ramifications and manifested in the electrocardiogram by a pattern similar to bundle-branch block but with complexes of low amplitude. (05 Mar 2000) |
| arborized | Having a treelike appearance. "An arborized or moss agate." Source: Websters Dictionary (01 Mar 1998) |
| arboroid | Denoting a colony of protozoa, each of which remains attached to another cell or to the main stem at one point, forming a branching or dendritic figure. Origin: L. Arbor, tree, + G. Eidos, resemblance (05 Mar 2000) |