CHO

CHO or C.H.O. may refer to:

The chemical symbol for an aldehyde
Carbohydrate, referencing the three constituent elements, carbon (C), Hydrogen (H) and Oxygen (O)
The ISO 639 code for the Choctaw language
Charlottesville-Albemarle Airport
Chinese hamster ovary cell
CHO, a mnemonic used to teach trigonometry, showing that the cosecant of an angle in a triangle is the ratio of the length of the hypotenuse over the length opposite side
cubohemioctahedron
Center-hand opponent, a term used in the card game bridge: see Glossary of contract bridge terms#C
Chief Household Officer ^[1]

References