swab
Word family nounswabberswabswabby
swab1 /swɒb $ swɑːb/ noun [countableC] 2 MHa small amount of a substance that is taken from someone’s body with a swab in order to test it 〔用拭子采集的〕化验样本 The doctor took a throat swab to check for infection. 医生用拭子从咽喉取样检查是否有感染。
swab2 verb (swabbed, swabbing) [transitiveT] 1 (also swab something ↔ down)TTWDHC to clean something using a large amount of water 擦洗,擦拭 a girl who was swabbing the tiled floor with a mop 一个正在用拖布拖洗地砖的女孩
2. MHto clean a wound with a small piece of special material 〔用拭子等〕拭抹〔伤口〕 Origin swab1 (1600-1700) Probably from early Dutch swabbe