lactoperoxidase

noun
lac·​to·​per·​ox·​i·​dase | \ˌlak-tō-pə-ˈräk-sə-ˌdās, -ˌdāz \

Medical Definition of lactoperoxidase 

: a peroxidase that is found in milk and saliva and is used to catalyze the iodination of tyrosine-containing proteins (as thyroglobulin)

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