Definitions

1. noun

A unit of volume in the US customary system, equivalent to one-hundredth of a barrel.

“The oil refinery produced 500 chm of crude oil daily.”

2. noun

A unit of volume in the US customary system, equivalent to 0.0249 gallons.

“The chm of fuel was calculated to last for three days.”

3. abbreviation

Chemical (used in various contexts).

“The chm formula indicated the compound’s properties.”