from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having been hardened; toughened.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. hard; indurated; sclerotic
from the GNU version of the Collaborative International Dictionary of English
- adj. Hard; indurated; sclerotic.
from The Century Dictionary and Cyclopedia
- Hard, firm, or indurated, in general; ossified or bony, as a part of the scleroskeleton; scleritic.
Lactic acid, applied with one to ten or more parts of water is also of value in the sclerous and verrucous types.