The word "mmoles" is a chemical term used to measure the amount of a substance in a sample. It is pronounced as /ˈɛm.moʊlz/ with emphasis on the second syllable. The spelling of "mmoles" is based on the SI unit of the mole (mol) which represents the amount of a chemical substance that contains a specific number of entities, such as atoms or molecules. The prefix "mm" is an abbreviation for milli, indicating that the quantity being measured is a thousandth of a mole.