proper time

noun

time measured by a clock that has the same motion as the observer. Any clock in motion relative to the observer, or in a different gravitational field, will not, according to the theory of relativity, measure proper time

Nearby words

  1. proper noun,
  2. proper palmar digital nerve,
  3. proper plantar digital nerve,
  4. proper substance of cornea,
  5. proper substance of sclera,
  6. proper value,
  7. properdin,
  8. properdin factor a,
  9. properdin factor b,
  10. properdin factor d

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012