WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / T / third law of motion third law of motion noun 19 letters Scrabble 28 WWF 30 Definitions noun action and reaction are equal and opposite law of action and reactionnewton's third lawnewton's third law of motion Look “third law of motion” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →