We found 17 dictionaries that define the word third dimension:

General (13 matching dictionaries)

1. third dimension: Merriam-Webster
2. third dimension: American Heritage Dictionary of the English Language
3. third dimension: Collins English Dictionary
4. third dimension: Vocabulary.com
5. third dimension: Wiktionary
6. third dimension: The Wordsmyth English Dictionary-Thesaurus
7. third dimension: Infoplease Dictionary
8. third dimension: Dictionary.com
9. Third dimension: Wikipedia, the Free Encyclopedia
10. third dimension: Rhymezone
11. third dimension: FreeDictionary.org
12. third dimension: Mnemonic Dictionary
13. third dimension: TheFreeDictionary.com

Business (1 matching dictionary)

14. third dimension: Legal dictionary

Computing (1 matching dictionary)

15. third dimension: Encyclopedia

Medicine (1 matching dictionary)

16. third dimension: Medical dictionary

Slang (1 matching dictionary)

17. third dimension: Urban Dictionary

(Note: See third-dimensional as well.)

Definitions from Wiktionary (third dimension) ▸ noun:  the quality, of depth or thickness, that differentiates a solid object from a two-dimensional image of it Similar: tridimensionality, three-dimensionality, four-dimensionality, quasi-three-dimensionality, quadridimensionality, depthness, dimensionality, thickness, hyperdimensionality, interdimensionality, more... Opposite: two-dimensional, flat, planar Phrases: Marvin the Martian in the Third Dimension, more... ▸ Words similar to third dimension ▸ Usage examples for third dimension ▸ Idioms related to third dimension ▸ Wikipedia articles (New!) ▸ Words that often appear near third dimension ▸ Rhymes of third dimension ▸ Invented words related to third dimension