Definition of leucosis in English:

leucosis

(also leukosis)

noun

  • [mass noun] A leukaemic disease of animals, especially one of a group of malignant viral diseases of poultry or cattle.

    • ‘Are cows which provide colostrum for your calves tested for bovine leukosis?’
    • ‘Scientists have been able to transmit the causative agent of acute leukosis (Marek's disease) in chickens with this beetle.’

Pronunciation:

leucosis

/luːˈkəʊsɪs/