lactoperoxidase

noun
lac·​to·​per·​ox·​i·​dase | \ ˌlak-tō-pə-ˈräk-sə-ˌdās, -ˌdāz How to pronounce lactoperoxidase (audio) \

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)