perversion

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perversion

 [per-ver´zhun]
1. deviation from the normal course; a morbid alteration of function which may occur in emotional, intellectual, or volitional fields.
sexual perversion sexual deviation.

per·ver·sion

(per-ver'zhŭn), Negative and pejorative connotations of this word may render it offensive in some contexts.
A deviation from the norm, especially concerning sexual interests or behavior.
[L. perversio, fr. per-verto, pp. -versus, to turn about]

perversion

/per·ver·sion/ (per-ver´zhun)
1. deviation from the normal course.
2. sexual perversion; see under deviation.

perversion

[pərvur′shən]
Etymology: L, pervertere, to turn about
1 any deviation from what is considered normal or natural.
2 the act of causing a change from what is normal or natural.
3
Usage notes: (informal)
(in psychiatry) any of a number of sexual practices that deviate from what is considered normal adult behavior. See also paraphilia.

perversion

(1) Paraphilia (sexual deviancy), see there.  
(2) A nonspecific term for any deviation from a norm.

per·ver·sion

(pĕr-ver'zhŭn) Negative and pejorative connotations of this word may render it offensive in some contexts.
A deviation from the norm, especially concerning sexual interests or behavior.
[L. perversio, fr. per-verto, pp. -versus, to turn about]