effusion /i'fju：3n; a'fjujan/ n 1 [U] sending or pouring out (of liquid, eg blood); (C] quantity poured out, 流出(指液體，例如血液); 傾注; 流出之量。 2 [C] (esp unrestrained) outpouring of thought or feeling: (尤指未抑制的)思想或感情的流露 .poetical ~s;, 情奔放; ~s in love letters. 情書中感情的盈溢。