Dictionary.net

an aberrant sexual practice that is preferred to normal intercourse

a curve that reverses the direction of something; "the tendrils of the plant exhibited perversion"; "perversion also shows up in kinky telephone cords"

an aberrant sexual practice that is preferred to normal intercourse

The act of perverting, or the state of being perverted; a turning from truth or right; a diverting from the true intent or object; a change to something worse; a turning or applying to a wrong end or use.

The act of perverting, or the state of being perverted; a turning from truth or right; a diverting from the true intent or object; a change to something worse; a turning or applying to a wrong end or use.

A turning from the true meaning or proper purpose; a using for wrong ends.

The act of perverting: a diverting from the true object: a turning from truth or propriety: misapplication.

Act of perverting; diverting from truth; mis application.

One of the four modifications of function in disease: the three others being augmentation, diminution, and abolition. The humourists used this term also to designate disorder or morbid change in the fluids.

Deviation from the usual way of doing things.

n. [Latin] Act of perverting;—act of diverting from the true end, object, or interest;—a wresting of the true sense or meaning; misinterpretation of a man's utterance;—alienation from right principles or moral duty; change for the worse in character or conduct; deterioration.