from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to oxalic acid or its derivatives.
- adj. (rare) Of or pertaining to oxaluria.
from the GNU version of the Collaborative International Dictionary of English
- adj. Pertaining to, derived from, or contained in, sorrel, or oxalis; specifically, designating an acid found in, and characteristic of, oxalis, and also certain plant of the Buckwheat family.
from The Century Dictionary and Cyclopedia
- Of or pertaining to sorrel.
From Oxalis, the sorrel plant (Wiktionary)