whirring

nouns

sound of something in rapid motion
"whir of a bird's wings"; "the whir of the propellers"
birr, whir, whirr, whirring
is derived from
whir

adjectives

like the sound of rapidly vibrating wings
whirring
is similar to
full of or characterized by loud and nonmusical sounds
"a noisy cafeteria"; "a small noisy dog"
noisy