Noun:

1. passerine bird having specialized vocal apparatus

Adjective:

1. of or relating to the songbirds

Osya奥夏OSabbr.操作系统=（Operating System）oscillating sander往复式砂带磨床,振动式磨光机os sphenethmoidale蝶筛骨oscillator circuit振荡回路,振荡线路,振荡歧路Osmanthus delavayi云南桂花oscillatory motion振动oscillatory period振荡周期os pleuroccipitale侧枕骨Osmunda cinnamomean.分株紫萁oscillator density振子密度Osborne's membrane油性指数