effusion

noun 4

Definitions

noun

1

A liquid outpouring.

2

Process of gases passing through a hole or holes considerably smaller than the mean free path of the gas molecules.

3

An outpouring of speech or emotion.

1930; George S. Kaufman, Morrie Ryskind, Bert Kalmar, Harry Ruby; Animal Crackers, Paramount Pictures Captain Spaulding: My friends, I am highly gratified by this magnificent display of effusion […]

The housekeeper, a very decorative brunette of thirty-five with a pseudo-English accent, greeted him with a mixture of grateful effusion and condescending patronage.

4

The seeping of fluid into a body cavity; the fluid itself.

pleural effusion

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