noun, plural cal·cu·li [kal-kyuh-lahy] /ˈkæl kyəˌlaɪ/, cal·cu·lus·es.
Origin of calculus
Examples from the Web for calculi
Biliary fistul communicating externally, caused by the migration of calculi, are comparatively common.
I consider the tartar on the teeth, calculi renales and arthritic nodosities very similar morbid products.
This symptom must not, however, be considered as pathognomonic, since it is observed when calculi are not present.
Stone, as in lithology, the branch of medical science, relating to calculi or concretions.Surgery, with Special Reference to Podiatry|Maximilian Stern
Intestinal concretions (calculi or stones in the intestines).
British Dictionary definitions for calculi
noun plural -luses
Word Origin for calculus
Word Origin and History for calculi
1660s, from Latin calculus "reckoning, account," originally "pebble used as a reckoning counter," diminutive of calx (genitive calcis) "limestone" (see chalk (n.)). Modern mathematical sense is a shortening of differential calculus. Also used from 1732 to mean kidney stones, etc., then generally for "concretion occurring accidentally in the animal body," such as dental plaque. Related: Calculous (adj.).