The second of four stages of human sexual response identified by William Masters, in which there is a period of intense sexual excitement lasting a variable but usually short time following a longer phase of increasing excitement and succeeded either by orgasm or by a longer period of decreasing excitement.
Origin
1960s.
Definition of plateau phase in US English:
plateau phase
noun
The second of four stages of human sexual response identified by William Masters, in which there is a period of intense sexual excitement lasting a variable but usually short time following a longer phase of increasing excitement and succeeded either by orgasm or by a longer period of decreasing excitement.