pəˈlōrəm-, -lȯrəm- noun
also pullorum
( -s )
Etymology: Latin pullorum, gen. plural of pullus young of an animal, foal, chick — more at foal
: salmonellosis of the chicken and less commonly of other birds that is caused by infection with a bacterium ( Salmonella pullorum ) transmitted both through the egg and from chick to chick, that is highly fatal in the young and is marked by weakness, lassitude, lack of appetite, and commonly by white or yellowish diarrhea, and that is frequently symptomless in mature birds but persists as an infection in the ovary resulting in lowered egg production and infertility and passing of the infection to the next generation — see bacillary white diarrhea