effusion
noun /ɪˈfjuːʒn/
  /ɪˈfjuːʒn/
[countable, uncountable]- (specialist) something, especially a liquid or gas, that flows out of somebody/something; the act of flowing out
 - (formal) the expression of feelings in an exaggerated way; feelings that are expressed in this way
 
Word Originlate Middle English: from Latin effusio(n-), from effundere ‘pour out’, from ex- ‘out’ + fundere ‘pour’.