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effusion

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effusion

Rhymes with -uːʒən

Where it comes from

Borrowed from Middle French effusion, from Latin effūsiō (“outpouring”). Displaced native Old English āgotennes.

noun effusions

  1. countable, uncountable A liquid outpouring.

    Opposite: infusion

  2. countable, uncountable Process of gases passing through a hole or holes considerably smaller than the mean free path of the gas molecules.
  3. broadly, countable, figuratively, uncountable 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 […]
  4. countable, uncountable The seeping of fluid into a body cavity; the fluid itself. pleural effusion

Translations

Every language

noun outpouring of liquid

Españolefusión
中文外溢 wàiyì, 流出 liúchū, 滲出液 /渗出液 shènchūyè
Portuguêsefusão
Françaiseffusion
DeutschAusfluss, Erguss
Italianoeffusione, spargimento, travaso
العربيةاِنْدِفَاق indifāq, اِنْصِبَاب inṣibāb

noun chemistry, physics: process

中文逸散
Françaiseffusion
DeutschEffusion
العربيةتَدَفُّق tadaffuq

noun outpouring of speech or emotion

Españolefusión
中文滔滔不絕的言辭 /滔滔不绝的言辞 tāotāobùjué de yáncí
Portuguêsefusão
Françaiseffusion
DeutschErguss, Ausbruch
Italianoeffusione, effusioni

noun seeping of fluid into a body cavity

Españolderrame
中文滲出 /渗出 shènchū, 滲液 /渗液 shènyè, 積液 /积液 jīyè
Portuguêsefusão
Françaiseffusion
DeutschErguss
Italianoeffusione

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Cite this
MLA

"effusion." Wiktionary, via Micwyn, micwyn.com/word/effusion. Accessed 6 Nov. 2026.

APA

effusion. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/effusion

Chicago

"effusion." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/effusion.

BibTeX
@misc{effusion_2026,
  title = {effusion},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/effusion},
  urldate = {2026-11-06}
}