One entry found for chalk.

Main Entry: ¹chalk
Pronunciation: chk
Function: noun
Etymology: Old English cealc "chalk," from Latin calc-, calx "lime" --related to CALCIUM
1 : a soft white, gray, or buff limestone made up mainly of the shells of tiny saltwater animals and especially foraminifers
2 : chalk or material like chalk especially when used as a crayon
- chalky /ch-k/ adjective