partial

A partial derivative: a derivative with respect to one independent variable of a function in multiple variables while holding the other variables constant.

Any of the sine waves which make up a complex tone; often an overtone or harmonic of the fundamental.

Dentures that replace only some of the natural teeth

To take the partial regression coefficient.

Existing as a part or portion; incomplete

"So far, I have only pieced together a partial account of the incident."

Describing a property that holds only when an algorithm terminates

"It's easy to prove partial correctness, but it's not obvious that it is also totally correct."

Biased in favor of a person, side, or point of view, especially when dealing with a competition or dispute

"The referee is blatantly partial!"