It is not only the man who is supplied with erectile tissue which in the process of tumescence becomes congested and swollen.
In other words, the process of tumescence is gradual and complex.
A certain degree of tumescence must already have been attained.
In man the process of tumescence and detumescence is simple.
tumescence: a swelling or tumid enlargement: a puffed up area.
tumescence must thus be obtained before desire can become acute, and courtship runs pari passu with physiological processes.
There is the period of tumescence, and the ecbole constituting the detumescence.
It is tumescence which is the really essential part of the process, and we cannot afford, with Moll, to ignore it altogether.
Not only is movement itself a source of tumescence, but even the spectacle of movement tends to produce the same effect.
In so far, however, as they are aids to tumescence they must be regarded as coming within the range of normal variation.
1725, from French tumescence, from Latin tumescentem (nominative tumescens) "swelling," present participle of tumescere "begin to swell," from tumere "to swell" (see thigh) + inchoative suffix -escere. The earliest attested form of the word in English is tumefaction (1590s).
tumescence tu·mes·cence (tōō-měs'əns, tyōō-)
A swelling or an enlargement.
A swollen condition.
A swollen part or organ.
tumescent tu·mes·cent (tōō-měs'ənt, tyōō-)
Becoming swollen; swelling.