Definitions

1. verb

to make a low humming or buzzing noise, typically in the throat or nose.

“The old clock began to bombinate as it started to wind down.”

2. verb

to utter a low humming or buzzing sound.

“The bees bombinated as they flew around the flowers.”

3. noun

a low humming or buzzing noise.

“The bombinate of the bees filled the air.”