atomic weight

/əˌtɑmɪk weɪt/

Other forms: atomic weights

Definitions of atomic weight

1. noun

   (chemistry) the mass of an atom of a chemical element expressed in atomic mass units
   synonyms: atomic mass, relative atomic mass

   types:

   combining weight, eq, equivalent, equivalent weight

   the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen

   meq, milliequivalent

   one-thousandth of an equivalent

   type of:

   mass

   the property of a body that causes it to have weight in a gravitational field