- heavy sweating during sleep, especially as a symptom of certain diseases, as tuberculosis.
Origin of night sweats
First recorded in 1745–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for night sweats
Her somnambulic situation alternated with fever, hemorrhage, and night-sweats.Summer on the Lakes, in 1843
The exceedingly debilitating effect of night-sweats is well known.
At the same time the night-sweats left off, and the patients improved in appearance and gained in weight.
With the exception of afternoon fever and night-sweats the patient may feel very comfortable.