We found 18 dictionaries that define the word fir tree:

General (14 matching dictionaries)

1. fir tree: Collins English Dictionary
2. fir tree: Vocabulary.com
3. Fir-tree, fir-tree, fir tree: Wordnik
4. fir tree: Cambridge Advanced Learner's Dictionary
5. Fir tree, fir tree: Dictionary.com
6. Fir Tree (disambiguation), Fir Tree, Fir tree, The Fir-Tree, The Fir Tree: Wikipedia, the Free Encyclopedia
7. Fir tree: Online Plain Text English Dictionary
8. fir tree: Rhymezone
9. Fir tree: AllWords.com Multi-Lingual Dictionary
10. fir-tree: Webster's 1828 Dictionary
11. Fir-tree: Dictionary of Phrase and Fable (1898)
12. fir tree: FreeDictionary.org
13. fir tree: Mnemonic Dictionary
14. fir tree: TheFreeDictionary.com

Computing (1 matching dictionary)

15. fir tree: Encyclopedia

Medicine (1 matching dictionary)

16. online medical dictionary (No longer online)

Science (2 matching dictionaries)

17. fir tree: LITTLE EXPLORERS(TM) Picture Dictionary
18. Garden Flower, Shrub and Tree Glossary (No longer online)

(Note: See fir_trees as well.)

Definitions from WordNet (fir tree) ▸ noun:  any of various evergreen trees of the genus Abies; chiefly of upland areas Opposite: deciduous tree, broadleaf tree, hardwood tree Types: balsam fir, Fraser fir, Douglas fir, Concolor fir, Noble fir, Nordmann fir, Grand fir, more... ▸ Words similar to fir tree ▸ Usage examples for fir tree ▸ Idioms related to fir tree ▸ Wikipedia articles (New!) ▸ Words that often appear near fir tree ▸ Rhymes of fir tree ▸ Invented words related to fir tree