views updated May 23 2018

ef·fu·sion / iˈfyoōzhən/ • n. an instance of giving off something such as a liquid, light, or smell: a massive effusion of poisonous gas. ∎  Med. an escape of fluid into a body cavity. ∎  an act of talking or writing in an unrestrained or heartfelt way: literary effusions.DERIVATIVES: ef·fuse v.


views updated May 18 2018

effusion pouring out or forth, shedding (of blood). XV. — (O)F. — L. effūsiō, -ōn-, f. effundere, effūs-; see EF-, FUSION.
So effuse XVI, effusive XVII.


views updated Jun 11 2018

effusion (i-few-zhŏn) n.
1. the escape of pus, serum, blood, lymph, or other fluid into a body cavity.

2. fluid that has escaped into a body cavity.