Medical Dictionary


noun cal·cu·lus \-ləs\
plural cal·cu·li \-ˌlī, -ˌlē\ also cal·cu·lus·es

Medical Definition of CALCULUS

:  a concretion usually of mineral salts around organic material found especially in hollow organs or ducts
:  a concretion on teeth :  tartar
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