from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A natural grease formed from dried perspiration found in the fleece of sheep, used as a source of potash.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A substance obtained from the wool of sheep, consisting largely of potash mixed with fatty and earthy matters.
from the GNU version of the Collaborative International Dictionary of English
- n. A peculiar substance obtained from the wool of sheep, consisting largely of potash mixed with fatty and earthy matters. It is used as a source of potash and also for the manufacture of gas.
from The Century Dictionary and Cyclopedia
- n. The natural grease of wool, consisting of insoluble soapy matter combined with a soluble salt containing from 15 to 33 per cent. of potash, which may be extracted commercially from the wool-washings.
French, from Old French, from suer, to sweat, from Latin sūdāre; see sweid- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)