Meaning of AN in English

AN

Function: noun suffix

Etymology: International Scientific Vocabulary -an, -ane, alteration of -ene, -ine, & -one

1 : unsaturated organic compound <fur an >

2 : anhydride of a carbohydrate <dextr an >

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.