American Heritage Dictionary
(3)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
There is a closeup of his tumescence, which looks younger and healthier than the rest of him, but no explicit sex.
An epic de-tumescence, with no hackneyed, dreary trick left un-played.— Popular Posts Across MetaFilter
It thus happens that tumescence, or even in extreme cases detumescence, may be provoked by the contemplation of acts or objects which are away from the end of sexual conjugation.— Studies in the Psychology of Sex, Volume 5 Erotic Symbolism; The Mechanism of Detumescence; The Psychic State in Pregnancy
[72] Hitherto we have been occupied mainly with the first phase, that of tumescence, and with its associated psychic phenomena.— Studies in the Psychology of Sex, Volume 5 Erotic Symbolism; The Mechanism of Detumescence; The Psychic State in Pregnancy
Courtship, as we commonly term the process of tumescence which takes place when a woman is first sexually approached by a man, is usually a highly prolonged process.— Studies in the Psychology of Sex, Volume 5 Erotic Symbolism; The Mechanism of Detumescence; The Psychic State in Pregnancy

Century Dictionary (1)
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