(More fully "blue comb disease") disease causing bluish discoloration of the comb in poultry, specifically coronaviral enteritis in turkeys; also in form bluecomb.
Origin
1930s; earliest use found in The Sheboygan Press.
Definition of blue comb in US English:
blue comb
noun
(More fully "blue comb disease") disease causing bluish discoloration of the comb in poultry, specifically coronaviral enteritis in turkeys; also in form bluecomb.