bourdon
/ˈbʊrdən/
noun
- A low-pitched stop on a pipe organ or a similar deep, sustained sound.
- The organist pulled out the bourdon stop to add a deep bass to the hymn.
- The bourdon of the organ filled the cathedral with a rumbling sound.
- He practiced playing the bourdon notes to strengthen his left hand.
- A low, humming or droning sound, like that of a bee or a distant engine.
- From the hill, we could hear the bourdon of traffic on the highway.
- The bourdon of the bees in the garden was a peaceful background noise.
- The bourdon of the old refrigerator kept her awake at night.