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English definition of “underarm”

underarm

adjective [before noun]     /ˈʌn.də.rɑːm/ US  /-dɚ.ɑːrm/
of or for use in the armpit (= hollow place under the arm where the arm joins the body): underarm deodorants/hairThe arm
(Definition of underarm adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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