We found 7 dictionaries that define the word first-in first-out:

General (1 matching dictionary)

1. first-in first-out: Dictionary.com

Business (3 matching dictionaries)

2. Comprehensive Financial (No longer online)
3. First-in first-out: Legal dictionary
4. First-in first-out: Financial dictionary

Computing (2 matching dictionaries)

5. first-in first-out: Free On-line Dictionary of Computing
6. first-in first-out: Encyclopedia

Medicine (1 matching dictionary)

7. online medical dictionary (No longer online)

▸ Words similar to first-in first-out ▸ Usage examples for first-in first-out ▸ Idioms related to first-in first-out ▸ Civic discussion about first-in first-out (New!) ▸ Words that often appear near first-in first-out ▸ Rhymes of first-in first-out ▸ Invented words related to first-in first-out