[vir.eo] n, pl -e.os [L, a small bird, fr. virere to be green] (1834): any of various small insectivorous American oscine birds (family Vireonidae and esp. genus Vireo) that are chiefly olivaceous and grayish in color
VIREO
Meaning of VIREO in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012