Share this entry

Share this page

group velocity

Syllabification: group ve·loc·i·ty

Definition of group velocity in English:

noun

Physics
The speed at which the energy of a wave travels.
Example sentences
  • Essentially, the group velocity of the wave must fall to zero at that location, dropping in such a way that there is sufficient time for the damping to dissipate all of the wave's energy before it gets to that point.
  • Even when the phase velocity is faster than light, the group velocity should be slower.
  • He counters that when a beam passes between positive- and negative-index media the group velocity is negatively refracted.

Definition of group velocity in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day emulous
Pronunciation: ˈɛmjʊləs
adjective
seeking to emulate someone or something