The Collaborative International Dictionary of English v.0.48:

aloe \al"oe\ ([a^]l"n[-o]), n.; pl. Aloes ([a^]l"[=o]z). [L.
   alo["e], Gr. 'alo`h, aloe: cf. OF. aloe, F. alo[`e]s.]
   1. pl. The wood of the agalloch. [Obs.] --Wyclif.
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   2. (Bot.) [capitalized] A genus of succulent plants, some
      classed as trees, others as shrubs, but the greater number
      having the habit and appearance of evergreen herbaceous
      plants; from some of which are prepared articles for
      medicine and the arts. They are natives of warm countries.
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   3. pl. (Med.) The inspissated juice of several species of
      aloe, used as a purgative. [Plural in form but
      syntactically singular.] AS
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   American aloe, Century aloe, the agave. See Agave.
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