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Letter : K

 

Kaplan's tri-phasic model

A model that, unlike Masters and Johnson's model, divides sexual response into three phases: desire, excitement, and orgasm.

 

Kaposi's sarcoma

A formerly rare cancer of the blood vessels that is now common as one of the opportunistic infections that strike people with AIDS; it appears as lesions on the skin.

 

Kegel exercises

A set of exercises designed to strengthen and give voluntary control over the muscles surrounding the genitals (known as the pubococcygeus muscles) and thereby increase sexual pleasure and awareness.

 

Klinefelter syndrome

A genetic condition in which a male has extra X chromosomes, thereby causing the development of female secondary sex characteristics. It is widely believed that Joan of Ark was a "Klinefelter male."

 

klismaphilia

A sexual variation in which the person derives sexual excitement from giving or receiving enemas. kleptophilia
A sexual variation in which the person derives sexual excitement from stealing.

 

koro

A Japanese form of psychopathology referring to the delusion that one's penis is shrinking into one's body.