ˈ ̷ ̷ˌ ̷ ̷ noun
1. : any of several small No. American songbirds (genus Sialia ) which are related to the robin and the males of which are conspicuously blue above, the male of the common migratory species ( S. sialis ) of the eastern and central United States having a blue back and reddish breast — see mountain bluebird , western bluebird
2. : fairy bluebird
3. : a moderate blue that is greener and duller than average copen and redder and deeper than azurite blue, Dresden blue, or pompadour