| a. | 1. | Coöperating; acting together to produce an effect. | |||
| n. | 1. | That which unites in action with something else to produce the same effect. | |||
| 2. | (Math.) A number or letter put before a letter or quantity, known or unknown, to show how many times the latter is to be taken; | ||||
| 3. | (Physics) A number, commonly used in computation as a factor, expressing the amount of some change or effect under certain fixed conditions as to temperature, length, volume, etc.;
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| Noun | 1. | coefficient - a constant number that serves as a measure of some property or characteristic |