a constant number that serves as a measure of some property or characteristic
"The friction coefficient indicates how much resistance occurs when two surfaces slide against each other."
A constant by which an algebraic term is multiplied.
"In the expression 5x, the number five acts as a coefficient because it is the constant that multiplies the variable x."
"The coefficient of friction determines how much grip you have on an icy road."
Usage: In mathematics, use coefficient to refer specifically to the numerical factor multiplying a variable in an expression. Do not confuse this technical meaning with unrelated words like affect or effect when discussing everyday contexts.
cooperating
"The team worked with great coefficient, ensuring every member contributed equally to the project's success."
The word "coefficient" entered English directly from French, where it was coined in the 16th century by mathematician François Viète to describe a numerical factor that multiplies variables. Its ultimate roots lie in Latin coefficere, meaning "to bring about together," which combines the prefix co- (with) and facere (to make).