Search Result for "first law of motion":
Wordnet 3.0

NOUN (1)

1. a body remains at rest or in motion with a constant velocity unless acted upon by an external force;
[syn: first law of motion, Newton's first law of motion, Newton's first law]



WordNet (r) 3.0 (2006):

first law of motion
    n 1: a body remains at rest or in motion with a constant
         velocity unless acted upon by an external force [syn:
         first law of motion, Newton's first law of motion,
         Newton's first law]