zinc pyrithione
noun
zinc pyr·i·thi·one
| \ -ˌpir-i-ˈthī-ˌōn
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Medical Definition of zinc pyrithione
: an antibacterial and antifungal compound C10H8N2O2S2Zn that is nearly insoluble in water, possesses cytostatic activity against epidermal cells, and is the active ingredient in various shampoos used to control dandruff and seborrheic dermatitis
— called also pyrithione zinc