We found 26 dictionaries that define the word altair:

General (18 matching dictionaries)

1. Altair: Merriam-Webster
2. Altair: Oxford Learner's Dictionaries
3. Altair: American Heritage Dictionary of the English Language
4. Altair: Collins English Dictionary
5. Altair: Vocabulary.com
6. Altair, altair: Wordnik
7. Altair: Wiktionary
8. Altair: Webster's New World College Dictionary, 4th Ed.
9. Altair: The Wordsmyth English Dictionary-Thesaurus
10. Altair: Infoplease Dictionary
11. Altair: Dictionary.com
12. Altair: Online Etymology Dictionary
13. Altair (Building), Altair (building), Altair (disambiguation), Altair (film), Altair (rocket stage), Altair (spacecraft), Altair (star), Altair: Wikipedia, the Free Encyclopedia
14. altair: FreeDictionary.org
15. altair: Mnemonic Dictionary
16. Altair: TheFreeDictionary.com
17. Altair: Rhymezone
18. Altair: Merriam-Webster

Computing (2 matching dictionaries)

19. Altair: CCI Computer
20. Altair (star), Altair: Encyclopedia

Miscellaneous (2 matching dictionaries)

21. ALTAIR: Acronym Finder
22. AbbreviationZ (No longer online)

Science (2 matching dictionaries)

23. Altair: Extragalactic Astronomy
24. ALTAIR: Zoom Astronomy Glossary

Slang (1 matching dictionary)

25. Altair [weapon] [arsenal], Altair: Urban Dictionary

Tech (1 matching dictionary)

26. SeaTalk Dictionary of English Nautical Language (No longer online)

(Note: See altairs as well.)

Definitions from Wiktionary (Altair) ▸ noun:  (astronomy) The brightest star in the constellation Aquila; Alpha (α) Aquilae. It is the twelfth brightest star in the sky, and forms one corner of the Summer Triangle. Similar: Almach, Ras Algethi, Eltanin, Betelgeuse, Seven Stars, Beta Centauri, plough, Beta Canis Majoris, Ae star, A star, more... Opposite: vega, antares, sirius, polaris Phrases: Altair 8800, Altair Engineering, Altair Semiconductor, Lockheed Altair, Somewhere at the Bottom of the River Between Vega and Altair, more... Adjectives: bright, brilliant, white, first, old, deneb, original, principal, nearest, new, stock Colors:     blue,     white,     silver,     gold,     black, more... ▸ Word origin ▸ Words similar to altair ▸ Usage examples for altair ▸ Idioms related to altair ▸ Wikipedia articles (New!) ▸ Popular adjectives describing altair ▸ Words that often appear near altair ▸ Rhymes of altair ▸ Invented words related to altair