ef‧fu‧sion /ɪˈfjuːʒ
ən/
noun [uncountable and countable][
Date: 1400-1500;
Language: French;
Origin: Latin effundere 'to pour out']
1. technical a liquid or gas that flows out of something, or the act of flowing out:
a massive effusion of poisonous gas2. formal an uncontrolled expression of strong good feelings:
He greeted the guests with effusion. [TahlilGaran] Dictionary of Contemporary English ▲