reduced mass

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noun Mechanics.

a quantity obtained when one particle is moving about another, larger particle that is also moving, equivalent to the mass of the smaller particle, were the larger particle not moving, and equal to the quotient of the product of the two masses divided by their sum.

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His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of reduced mass

First recorded in 1930–35

Words nearby reduced mass

Red Tory, red trillium, reduce, reduced, reduced level, reduced mass, reduced paid-up insurance, reducer, reducible, reducing agent, reducing glass