We found 18 dictionaries that define the word trap door:

General (11 matching dictionaries)

1. trap door: Oxford Learner's Dictionaries
2. trap door: Collins English Dictionary
3. trap door: Vocabulary.com
4. trap-door: Wordnik
5. trap door: Wiktionary
6. trap door: Dictionary.com
7. The Trap Door (video game), The Trap Door, Trap Door (EP), Trap Door (magazine), Trap Door, Trap door: Wikipedia, the Free Encyclopedia
8. trap door: Rhymezone
9. trap door: FreeDictionary.org
10. trap door: Mnemonic Dictionary
11. trap door: TheFreeDictionary.com

Art (1 matching dictionary)

12. Banjo Glossary (No longer online)

Computing (4 matching dictionaries)

13. trap door: Free On-line Dictionary of Computing
14. trap door: CCI Computer
15. trap-door, trap door: Hacking Lexicon
16. Trap-door, trap door: Encyclopedia

Medicine (1 matching dictionary)

17. online medical dictionary (No longer online)

Slang (1 matching dictionary)

18. Trap Door: Urban Dictionary

(Note: See trap_doors as well.)

Definitions from Wiktionary (Trap door) ▸ noun:  Alternative form of trapdoor [A hinged or sliding door set into a floor or ceiling.] Similar: swinging door, door knob, doorhinge, cat-flap, trapnest, man-trap, glassdoor, churchdoor, glass-door, rat trap, more... Types: cellar door, attic door, hatch, manhole, storm cellar door, trapdoor, more... Phrases: trap door spider, trap door function, Trap Door Spiders, The Trap Door, more... Adjectives: staple, latchkey, key, spring-loaded, shafted, bit, pile driver, gasketed, batten, pulleyed, stock ▸ Words similar to trap door ▸ Usage examples for trap door ▸ Idioms related to trap door ▸ Wikipedia articles (New!) ▸ Words that often appear near trap door ▸ Rhymes of trap door ▸ Invented words related to trap door