plural of Earth mass

plural of mass start

(sports) A format of starting in certain racing sports, such as long-distance running, cycling and biathlon, where the competitors start at the same time and same place and proceed along the same course.

plural of weapon of mass destruction

(physics) A form of mass spectrometry in which ions are accelerated to extraordinarily high kinetic energies before mass analysis.

(physics) The ratio of the average mass per atom of the naturally occurring form of an element to 1/12 of the mass of a carbon-12 atom. Symbol Aᵣ; abbreviation RAM or r.a.m. For elements with several isotopes, the most stable isotope is treated as the representative.

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.

Any human-made weapon causing indiscriminate large-scale death or destruction, especially a biological weapon, chemical weapon, nuclear weapon or radiological weapon.

(chemistry) A unit of mass equal to 1/12 the mass of an atom of the ¹²C isotope of carbon.

(astronomy) a relationship that specifies the mass distribution of a newly formed stellar population