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| 1. |
mass - the property of a body that causes it to have weight in a gravitational field |
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fundamental measure,
fundamental quantity one of the four quantities that are the basis of systems of measurement
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physical property any property used to characterize matter and energy and their interactions
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body the external structure of a vehicle; "the body of the car was badly rusted"
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biomass the total mass of living matter in a given unit area
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critical mass the minimum mass of fissionable material that can sustain a chain reaction
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rest mass (physics) the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body
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relativistic mass (physics) the mass of a body in motion relative to the observer: it is equal to the rest mass multiplied by a factor that is greater than 1 and that increases as the magnitude of the velocity increases
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bulk the property possessed by a large mass
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gravitational mass (physics) the mass of a body as measured by its gravitational attraction for other bodies
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inertial mass (physics) the mass of a body as determined by the second law of motion from the acceleration of the body when it is subjected to a force that is not due to gravity
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atomic mass,
atomic weight,
relative atomic mass (chemistry) the mass of an atom of a chemical element expressed in atomic mass units
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mass energy (physics) the mass of a body regarded relativistically as energy
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molecular weight,
relative molecular mass (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule
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mass defect,
mass deficiency the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles
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| 2. |
Mass - (Roman Catholic Church and Protestant Churches) the celebration of the Eucharist |
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religious ceremony,
religious ritual a ceremony having religious meaning
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church of rome,
roman catholic,
roman catholic church,
roman church,
western church the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy
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protestant,
protestant church an adherent of Protestantism
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high mass a solemn and elaborate Mass with music
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low mass a Mass recited without music
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requiem a Mass celebrated for the dead
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| 3. |
mass - a body of matter without definite shape; "a huge ice mass" |
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body the external structure of a vehicle; "the body of the car was badly rusted"
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coprolith,
faecalith,
fecalith,
stercolith a hard mass of fecal matter
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drift a horizontal (or nearly horizontal) passageway in a mine; "they dug a drift parallel with the vein"
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mat a thick flat pad used as a floor covering
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mush,
pulp a journey by dogsled
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| 4. |
mass - an ill-structured collection of similar things (objects or people) |
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accumulation,
aggregation,
assemblage,
collection the act of accumulating
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logjam an immovable mass of logs blocking a river
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shock the violent interaction of individuals or groups entering into combat; "the armies met in the shock of battle"
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| 5. |
Mass - a musical setting for a Mass; "they played a Mass composed by Beethoven" |
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church music,
religious music genre of music composed for performance as part of religious ceremonies
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high mass a solemn and elaborate Mass with music
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requiem a Mass celebrated for the dead
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| 6. |
Mass - a sequence of prayers constituting the Christian Eucharistic rite; "the priest said Mass" |
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prayer the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving); "the priest sank to his knees in prayer"
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| verb |
| 1. |
mass - join together into a mass or collect or form a mass; "Crowds were massing outside the palace" |
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crowd,
crowd together to gather together in large numbers; "men in straw boaters and waxed mustaches crowded the verandah"
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press place between two surfaces and apply weight or pressure; "pressed flowers"
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