caliculus
/kæˈlɪkjʊləs/Definitions
1. noun
a branch of mathematics dealing with the study of continuous change, rates of change, and accumulation.
“The professor explained the concept of calculus to the students and how it’s applied in physics.”
2. noun
a small pebble or stone, especially one used as a counter or for gaming.
“The children played with small stones as a makeshift game of calculus, trying to guess the number of stones in a jar.”