Crepadis

What is the noise called when two bones grind together. I was told it was called crepadis, however when I search this up on google, the wrong resutls pop up.

crepitis is the noise used to describe - the noise of bones rubbing together, usually ribs and the sense of air under muscle. is it often used in reference to a FLAIL CHEST, which is an injury to the chest wall, during both form of crepitis are noted.

Thanks a million! I could never spell.