We found 15 dictionaries that define the word alca:

General (12 matching dictionaries)

1. Alca: Merriam-Webster
2. Alca: Vocabulary.com
3. Alca, alca: Wordnik
4. ALCA: Dictionary.com
5. ALCA, Alca (bird), Alca: Wikipedia, the Free Encyclopedia
6. Alca: Rhymezone
7. ALCA: Stammtisch Beau Fleuve Acronyms
8. alca: FreeDictionary.org
9. alca: Mnemonic Dictionary
10. Alca: TheFreeDictionary.com
11. Alca, Alca: Merriam-Webster

Miscellaneous (2 matching dictionaries)

12. ALCA: Acronym Finder
13. AbbreviationZ (No longer online)

Slang (1 matching dictionary)

14. ALCA: Urban Dictionary

(Note: See alcas as well.)

Definitions from Wikipedia (Alca) ▸ noun:  a genus of charadriiform bird that contains a single extant species, the razorbill (Alca torda). Types: Alca torda, Alca clypeata, Alca impennis, Alca pomarina, more... Phrases: alca torda, genus alca, alca impennis, Aero L-159 ALCA, more... ▸ Words similar to alca ▸ Usage examples for alca ▸ Idioms related to alca ▸ Wikipedia articles (New!) ▸ Popular adjectives describing alca ▸ Words that often appear near alca ▸ Rhymes of alca ▸ Invented words related to alca