engorge
verb [usually passive] (specialist)to cause something to become filled with blood or another liquid and to swell (= become larger or rounder than normal) 使充血;使涨满液体 - be engorged (with something)
Once feeding is complete, the tick is engorged with blood and will fall off. 一旦喂食完成,蜱就会充血并脱落。
Word Originlate 15th cent. (in the sense ‘gorge; eat or fill to excess’): from Old French engorgier ‘feed to excess’, from en- ‘into’ + gorge ‘throat’.- be engorged (with something)