anhidrosis
noun
an·hi·dro·sis
variants:
also anhydrosis \ ˌan-hi-ˈdrō-səs, -hī- 
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or anidrosis \ ˌan-i-ˈ
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or anidrosis \ ˌan-i-ˈ
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plural anhidroses\ -ˌsēz
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Medical Definition of anhidrosis
: abnormal deficiency or absence of sweating