[1] : The Collaborative International Dictionary of English v.0.48

sorrel \sor"rel\, n. f. surelle, fr. sur sour, fr. ohg. s?r
   sour. see sour. bot.
   one of various plants having a sour juice; especially, a
   plant of the genus rumex, as rumex acetosa, rumex
   acetosella, etc.
   1913 webster

   mountain sorrel. bot. see under mountain.

   red sorrel. bot.
   a a malvaceous plant hibiscus sabdariffa whose acid
       calyxes and capsules are used in the west indies for
       making tarts and acid drinks.
   b a troublesome weed rumex acetosella, also called
       sheep sorrel.

   salt of sorrel chem., binoxalate of potassa; -- so called
      because obtained from the juice of rumex acetosella, or
      rumex axetosa.

   sorrel tree bot., a small ericaceous tree oxydendrum
      arboreum whose leaves resemble those of the peach and
      have a sour taste. it is common along the alleghanies.
      called also sourwood.

   wood sorrel bot., any plant of the genus oxalis.
      1913 webster
see also:
sour rumex rumex acetosa rumex acetosella mountain sorrel mountain 
red sorrel hibiscus sabdariffa rumex acetosella sheep sorrel salt of sorrel 
rumex axetosa sorrel tree oxydendrum arboreum sourwood wood sorrel 

[2] : The Collaborative International Dictionary of English v.0.48

sourwood \sour"wood`\, n. bot.
   the sorrel tree.
   1913 webster sous

[3] : WordNet (r) 2.0

sourwood
     n : deciduous shrubby tree of eastern north america having
         deeply fissured bark and sprays of small fragrant white
         flowers and sour-tasting leaves syn: sorrel tree, titi,
          oxydendrum arboreum
see also:
sorrel tree titi oxydendrum arboreum 

Sourwood >> S Words
Sourwood, definition of term: Sourwood
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