The doctor found multiple calculi in the patient's kidneys.

Lambda calculi are a formal system in mathematical logic.

Logical calculi are used in computer science to reason about complex systems.

Propositional calculi are used in logic and mathematics.

Sequent calculi are used in mathematical logic.

I had surgery to remove the jackstone calculi from my kidney.

Fractional calculi is a branch of mathematics that deals with fractional derivatives and integrals.

He was diagnosed with renal calculi.

The artist created a calculiform sculpture that resembled a pebble.

The calculifrage is a rare plant found only in the Amazon rainforest.