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We found 57 dictionaries with English definitions that include the word hydrogen:
Click on the first link on a line below to go directly to a page where "hydrogen" is defined.

General dictionaries General (31 matching dictionaries)
  1. hydrogen: Merriam-Webster.com [home, info]
  2. hydrogen: Oxford Learner's Dictionaries [home, info]
  3. hydrogen: American Heritage Dictionary of the English Language [home, info]
  4. hydrogen: Collins English Dictionary [home, info]
  5. hydrogen: Vocabulary.com [home, info]
  6. hydrogen: Macmillan Dictionary [home, info]
  7. Hydrogen, hydrogen: Wordnik [home, info]
  8. hydrogen: Cambridge Advanced Learner's Dictionary [home, info]
  9. hydrogen: Wiktionary [home, info]
  10. hydrogen: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. hydrogen: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. hydrogen: Infoplease Dictionary [home, info]
  13. hydrogen: Dictionary.com [home, info]
  14. hydrogen: Online Etymology Dictionary [home, info]
  15. hydrogen: UltraLingua English Dictionary [home, info]
  16. hydrogen: Cambridge Dictionary of American English [home, info]
  17. Hydrogen (disambiguation), Hydrogen (horse), Hydrogen (software), Hydrogen: Wikipedia, the Free Encyclopedia [home, info]
  18. Hydrogen: Online Plain Text English Dictionary [home, info]
  19. hydrogen: Rhymezone [home, info]
  20. hydrogen: AllWords.com Multi-Lingual Dictionary [home, info]
  21. hydrogen: Webster's 1828 Dictionary [home, info]
  22. Hydrogen: Encarta® Online Encyclopedia, North American Edition [home, info]
  23. Hydrogen: 1911 edition of the Encyclopedia Britannica [home, info]
  24. hydrogen: Free Dictionary [home, info]
  25. hydrogen: Mnemonic Dictionary [home, info]
  26. hydrogen: WordNet 1.7 Vocabulary Helper [home, info]
  27. hydrogen: LookWAYup Translating Dictionary/Thesaurus [home, info]
  28. hydrogen: Dictionary/thesaurus [home, info]
  29. hydrogen: Webster's Revised Unabridged, 1913 Edition [home, info]

Art dictionaries Art (1 matching dictionary)
  1. hydrogen: ArtLex Lexicon of Visual Art Terminology [home, info]

Business dictionaries Business (2 matching dictionaries)
  1. Hydrogen: Energy Dictionary [home, info]
  2. hydrogen: Financial dictionary [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. hydrogen: Encyclopedia [home, info]

Medicine dictionaries Medicine (6 matching dictionaries)
  1. Hydrogen: MedTerms.com Medical Dictionary [home, info]
  2. Hydrogen: Medical Dictionary [home, info]
  3. hydrogen: Digestive Diseases Dictionary [home, info]
  4. hydrogen: online medical dictionary [home, info]
  5. hydrogen: Medical dictionary [home, info]
  6. Hydrogen: Drug Medical Dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (1 matching dictionary)
  1. hydrogen: Encyclopedia of Graphic Symbols [home, info]

Science dictionaries Science (7 matching dictionaries)
  1. Hydrogen: Eric Weisstein's World of Chemistry [home, info]
  2. Hydrogen: Eric Weisstein's World of Physics [home, info]
  3. hydrogen: Imagine the Universe! Dictionary [home, info]
  4. Hydrogen: Extragalactic Astronomy [home, info]
  5. hydrogen: General Chemistry Online [home, info]
  6. hydrogen: WebElements Periodic Table of the Elements [home, info]
  7. HYDROGEN: Zoom Astronomy Glossary [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. hydrogen: Urban Dictionary [home, info]

Tech dictionaries Tech (7 matching dictionaries)
  1. hydrogen: High-Energy Astrophysics [home, info]
  2. Hydrogen: AUTOMOTIVE TERMS [home, info]
  3. Hydrogen: A to Z of Terms related to the Thermal Spray Process and Surface Engineering [home, info]
  4. hydrogen: Glossary of Meteorology [home, info]
  5. Hydrogen: Explosives [home, info]
  6. HYDROGEN: Lake and Water Word Glossary [home, info]
  7. Hydrogen: Glossary of Energy Terms [home, info]

(Note: See hydrogens for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (hydrogen)

noun:  a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

▸ Also see hydrogens
Word origin

Words similar to hydrogen

Usage examples for hydrogen

Idioms related to hydrogen (New!)

Popular adjectives describing hydrogen

Words that often appear near hydrogen

Rhymes of hydrogen

Invented words related to hydrogen

Phrases that include hydrogen:   hydrogen sulfide, hydrogen bromide, hydrogen carbonate, hydrogen embrittlement, atomic hydrogen, more...

Words similar to hydrogen:   h, hydrogenous, atomic number 1, more...

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