We found 23 dictionaries that define the word water main:

General (20 matching dictionaries)

1. water main: Longman Dictionary of Contemporary English
2. water main: Merriam-Webster
3. water main: Oxford Learner's Dictionaries
4. water main: American Heritage Dictionary of the English Language
5. water main: Collins English Dictionary
6. water main: Vocabulary.com
7. water-main: Wordnik
8. water main: Cambridge Advanced Learner's Dictionary
9. Water main: InfoVisual Visual Dictionary
10. water main: Wiktionary
11. water main: The Wordsmyth English Dictionary-Thesaurus
12. water main: Infoplease Dictionary
13. water main: Dictionary.com
14. Water main: Wikipedia, the Free Encyclopedia
15. water main: Rhymezone
16. water main: FreeDictionary.org
17. water main: Mnemonic Dictionary
18. water main: TheFreeDictionary.com

Business (1 matching dictionary)

19. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

20. water main: Encyclopedia

Tech (1 matching dictionary)

21. Lake and Water Word Glossary (No longer online)

(Note: See water_mains as well.)

Definitions from Wiktionary (water main) ▸ noun:  The principal pipe, usually underground, for conveying water to residential and business properties. Similar: mains, mainline, rising main, waterworks, conduit, drainage pipe, dry riser, trunk, plumbing, pipeline, more... Opposite: sewer line, gas line, power line, cable line Types: PVC, copper, steel, cast iron, ductile iron, asbestos cement, concrete, PEX, more... Phrases: Thames Water Ring Main, outlet from a water main, more... Adjectives: piping, steam, underbalanced, septic, flue, overfire, jet, well, flush, downhole, draft ▸ Words similar to water main ▸ Usage examples for water main ▸ Idioms related to water main ▸ Wikipedia articles (New!) ▸ Words that often appear near water main ▸ Rhymes of water main ▸ Invented words related to water main