We found 11 dictionaries that define the word pine trees:

General (7 matching dictionaries)

1. pine trees: Merriam-Webster
2. pine trees: Vocabulary.com
3. pine-tree's, pine-trees: Wordnik
4. pine trees: Cambridge Advanced Learner's Dictionary
5. pine trees: Wiktionary
6. Pine trees: Wikipedia, the Free Encyclopedia
7. Pine trees: TheFreeDictionary.com

Business (1 matching dictionary)

8. Pine trees: Legal dictionary

Computing (1 matching dictionary)

9. Pine trees: Encyclopedia

Medicine (1 matching dictionary)

10. Pine trees: Medical dictionary

Miscellaneous (1 matching dictionary)

11. Pine trees: Idioms

(Note: See pine_tree as well.)

Definitions from Wiktionary (pine tree) ▸ noun:  Any coniferous tree in the genus Pinus ▸ Also see pine_tree Phrases: reproduction of pine trees, more... ▸ Words similar to pine trees ▸ Usage examples for pine trees ▸ Idioms related to pine trees ▸ Wikipedia articles (New!) ▸ Words that often appear near pine trees ▸ Rhymes of pine trees ▸ Invented words related to pine trees