ATOMIC MASS

Pronunciation (US):

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 Dictionary entry overview: What does atomic mass mean? 

• ATOMIC MASS (noun)
  The noun ATOMIC MASS has 1 sense:

1. (chemistry) the mass of an atom of a chemical element expressed in atomic mass units

  Familiarity information: ATOMIC MASS used as a noun is very rare.

 Dictionary entry details 

• ATOMIC MASS (noun)

Sense 1

Meaning:

(chemistry) the mass of an atom of a chemical element expressed in atomic mass units

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

atomic mass; atomic weight; relative atomic mass

Hypernyms ("atomic mass" is a kind of...):

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

Domain category:

chemical science; chemistry (the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions)

Hyponyms (each of the following is a kind of "atomic mass"):

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)

 Context examples 

A form of a chemical element containing a specific number of neutrons and a specific atomic mass.

(Isotope, NCI Thesaurus)

A unit of atomic mass equal to one thousand daltons.

(Kilodalton, NCI Thesaurus)

A radioactive isotope of iodine with an atomic mass of 131, a half life of eight days, and potential antineoplastic activity.

(Iodine I-131, NCI Thesaurus)

A radioactive isotope of iodine, a nonmetallic element of the halogen group with an atomic mass of 123 and a half-life of 13.2 hours with radioisotopic activity.

(Iodine I-123, NCI Thesaurus)

A radioactive isotope of iodine, a nonmetallic element of the halogen group, with an atomic mass of 124 and a half-life of 4.18 days with radioisotopic activity.

(Iodine I 124, NCI Thesaurus)

A radioactive isotope of cesium with an atomic mass of 139 and potential application in radiotherapy.

(Cesium Cs 137, NCI Thesaurus)