Akademik

whirring
I
noun
sound of something in rapid motion (Freq. 2)
-

whir of a bird's wings

-

the whir of the propellers

Syn: ↑whir, ↑whirr, ↑birr
Derivationally related forms: ↑birr (for: ↑birr), ↑whir, ↑whirr (for: ↑whirr), ↑whir (for: ↑whir)
Hypernyms: ↑sound
II
adjective
like the sound of rapidly vibrating wings
Similar to: ↑noisy

Useful english dictionary. 2012.