swab Definition in the Cambridge English Dictionary
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Definition of “swab” - English Dictionary

Definition of "swab" - American English Dictionary

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swabnoun [C]

 us   /swɑb/
a ​smallpiece of ​softmaterial at the end of a ​thinstick, used esp. for ​cleaning something or for putting on ​medicine: a ​cotton swab
(Definition of swab from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "swab" - British English Dictionary

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swabnoun [C]

uk   /swɒb/  us   /swɑːb/
a ​smallpiece of ​softmaterial used for ​cleaning a ​cut or for taking a ​smallamount of ​substance from a ​body, or the ​substance itself that can then be ​tested: The ​nursecleaned the ​cut on my ​leg with a swab. "I'm just going to take a swab ofyourear," said the ​doctor. US (US trademark Q-tip, UK trademark cotton bud) a ​smallpiece of ​softmaterial on a ​shortstick: Use a ​cotton swab to ​cleanyourears.

swabverb [T]

uk   /swɒb/  us   /swɑːb/ (-bb-)

swab verb [T] (WASH)

to ​wash a ​surface, ​especially the ​open, ​flatareas of a ​ship, with a ​wetcloth or mop

swab verb [T] (MEDICINE)

to ​clean a ​cut or take a ​smallamount of ​substance from a ​body using a ​smallpiece of ​softmaterial
(Definition of swab from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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