Inertial mass

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The mass of an object measured as its resistance to being accelerated by an applied force; it is equal to its gravitational mass. countable, uncountable
  2. 2
    (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 wordnet