1 [C] a small round piece of medicine that you swallow 药丸；药片: Take one pill, three times a day after meals. 饭后服用，每日三次，每次一粒。a sleeping pill 安眠药 ☞Look at tablet. 参看tablet。 ☞picture at health 见health插图

2 the pill [sing] a pill that some women take regularly so that they do not become pregnant （口服）避孕药: She is on the pill. 她在服用避孕药。