Thesaurus
Translate
Puzzles & Games
Word of the Day
Blog
Slideshows
Apps by Dictionary
My Account
Log Out
Log In
follow Dictionary.com
Dictionary
Thesaurus
Translate
More...
Our Blog
Daily Crossword
Crossword Solver
Fiancé or fiancée? What's the difference?
Favorite Button
CITE
Translate
Facebook
Share
Twitter
Tweet
Google+
Share
relativistic quantum mechanics
Word Origin
noun
,
Physics.
1.
quantum mechanics based on a wave equation satisfying the mathematical requirements of the special theory of relativity and applying to particles of any velocity.
Origin of
relativistic quantum mechanics
Expand
1935-1940
1935-40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Discover our greatest slideshows
Seven Wacky Words Born in the USA
Rise and Shine: 9 Sunny Words
Jurassic Words: 9 Dinosaur Names...
I Now Pronounce You: 10 Unusual...
Browse more topics on our blog
What Is the Difference Between Discreet and Discrete?
Learn the correct uses of these two commonly confused homophones.
What Character Was Removed from the Alphabet?
What mistaken pronunciation gave this character its name?
Apostrophes 101
This small mark has two primary uses: to signify possession or omitted letters.
How Do I Get a Word into the Dictionary?
People invent new words all the time, but which ones actually make it?
Word of the Day
Difficulty index for
relativistic quantum mechanics
Few English speakers likely know this word
Word Value for
relativistic
0
20
Scrabble
Words With Friends
Nearby words for relativistic quantum mechanics
relative-dispersions'
relative-maxima
relative-maximum
relative-maximums
relative-maximums'
relative-minima
relative-minimum
relative-minimums
relative-minimums'
relative-sunspot-number
relative-sunspot-numbers
relative-sunspot-numbers'
relative-to
relatively
relatively prime
relatively prime numbers
relatively to
relativeness
relatives
relatives'
relativise
relativism
relativist
relativistic
relativistic mass
relativistic quantum mechanics
relativistically
relativity
relativization
relativize
relator
relatum
relaunch
relaunching
relax
relaxant
relaxant reversal
relaxation
relaxation oscillator
relaxation suture
relaxation time
relaxed
relaxedly
relaxedness
relaxedness'
relaxedness's
relaxednesses
relaxednesses'
relaxer
relaxin
relaxing