1. calculus

noun. ['ˈkælkjələs'] a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body.

Rhymes with Urinary Calculus

2. calculus

noun. ['ˈkælkjələs'] the branch of mathematics that is concerned with limits and with the differentiation and integration of functions.

3. calculus

noun. ['ˈkælkjələs'] an incrustation that forms on the teeth and gums.