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average atomic mass
The weighted average of the atomic masses of the naturally occurring isotopes of an element.
weapon of mass destruction
Any human-made weapon causing indiscriminate large-scale death or destruction, especially a biological weapon, chemical weapon, nuclear weapon or radiological weapon.
atomic mass unit
(chemistry) A unit of mass equal to 1/12 the mass of an atom of the ¹²C isotope of carbon.
probability mass function
(mathematics) A function that gives the relative probability that a discrete random variable is exactly equal to some value.
passive gravitational mass
(physics) The mass of an object measured via the gravitational force experienced by it in a known gravitational field
active gravitational mass
(physics) The mass of an object measured via the gravitational force that it exerts
accelerator mass spectrometry
(physics) A form of mass spectrometry in which ions are accelerated to extraordinarily high kinetic energies before mass analysis.
body mass index
A statistical measure of the weight of a person scaled according to height, used to estimate if a person is underweight or overweight. BMI units are defined as kg/m² ≈ 703*lb/in².
point masses
plural of point mass
atomic masses
plural of atomic mass
