Medical Dictionary

chalk

noun \ˈchk\

Medical Definition of CHALK

:  a soft white, gray, or buff limestone composed chiefly of the shells of foraminifers and sometimes used medicinally as a source of calcium carbonate—called also creta; see precipitated chalk, prepared chalk
chalky \ˈch-kē\ adjective
July 04, 2015
stringent Hear it
rigorous, strict, or severe
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears