Sor·rel, n.  Bot. One of various plants having a sour juice; especially, a plant of the genus Rumex, as Rumex Acetosa, Rumex Acetosella, etc.
 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.
 ◄ ►
 red sorrel
      n : East Indian sparsely prickly annual herb or perennial
          subshrub widely cultivated for its fleshy calyxes used in
          tarts and jelly and for its bast fiber [syn: roselle, rozelle,
           sorrel, Jamaica sorrel, Hibiscus sabdariffa]