coefficient
multiplicative factor involved in some term of a polynomial, a series, or an expression
ballistic coefficient
physical measure of overcoming air resistance
coefficient of relationship
measure of the degree of consanguinity (or biological relationship) between two individuals
impact factor
measure of mean number of citations per article of an academic journal
Christoffel symbols
in Riemannian geometry, the coefficient of the Levi-Civita connection of a Riemannian metric
correlation coefficient
numerical measure of some type of correlation
osmotic coefficient
quantity characterizing the deviation of a solvent from ideal behavior
Coefficient of utilization
efficiency of luminaire in transferring light energy
Einstein coefficients
quantities describing probability of absorption or emission of light
binomial coefficient
family of positive integers that occur as coefficients in the binomial theorem
transmission coefficient
coefficient describing the amplitude, intensity, or total power of a transmitted wave relative to an incident wave
residue
coefficient of the term of order −1 in the Laurent expansion of a function holomorphic outside a point, whose value can be extracted by a contour integral
coefficient of restitution
measure used to characterise inelastic collisions
coefficient of friction
dimensionless scalar value which describes the ratio of the force of friction between two bodies and the force pressing them together; depends on the materials used, ranges from near zero to greater than one