Definition of perspiration noun from the Oxford Advanced Learner's Dictionary

     

    perspiration

     noun
    noun
    BrE BrE//ˌpɜːspəˈreɪʃn//
     
    ; NAmE NAmE//ˌpɜːrspəˈreɪʃn//
     
    [uncountable] Skin
     
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  1. 1drops of liquid that form on your skin when you are hot synonym sweat Beads of perspiration stood out on his forehead. Her skin was damp with perspiration. See related entries: Skin
  2. 2the act of perspiring Perspiration cools the skin in hot weather.
  3. Word Origin early 17th cent.: from French, from perspirer, from Latin perspirare, from per- ‘through’ + spirare ‘breathe’.Extra examples Great beads of perspiration trickled down his forehead. He wiped the perspiration from his brow. Her face was wet with perspiration. My shirt was soaked in perspiration. Perspiration broke out on my skin. Perspiration ran down his face.
See the Oxford Advanced American Dictionary entry: perspiration