law of gravitation
- noun a basic principle of physics that any two masses attract each other with a force equal to a constant multiplied by the product of the two masses and divided by the square of the distance between them
- A law that states that for any two particles or bodies, the force of attraction is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them. This force occurs along a straight line between the particles or bodies, and applies to all matter, including electrons and stars. Also called newton's law of gravitation.
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