Search Result for "law of action and reaction":
Wordnet 3.0

NOUN (1)

1. action and reaction are equal and opposite;
[syn: third law of motion, Newton's third law of motion, Newton's third law, law of action and reaction]



WordNet (r) 3.0 (2006):

law of action and reaction
    n 1: action and reaction are equal and opposite [syn: third law
         of motion, Newton's third law of motion, Newton's third
         law, law of action and reaction]