[ad_1] noun, plural ar·bo·res [ahr-buh-reez] /ˈɑr bəˌriz/. Botany.
- a tree.
- the US spelling of
- a rotating shaft in a machine or power tool on which a milling cutter or grinding wheel is fitted
- a rotating shaft or mandrel on which a workpiece is fitted for machining
- metallurgy a part, piece, or structure used to reinforce the core of a mould
c.1300, herber, “herb garden,” from Old French erbier “field, meadow; kitchen garden,” from Latin herba “grass, herb” (see ). Later “a grassy plot” (early 14c., a sense also in Old French), “a shaded nook” (mid-14c.). Probably not from Latin arbor “tree,” though perhaps influenced by its spelling.
The change from er- to ar- before consonants in Middle English also reflects a pronunciation shift: cf. from ferme, from Old English herebeorg.
n. pl. ar•bo•res (är′bə-rēz′)
- A treelike anatomical structure.