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We found 9 dictionaries with English definitions that include the word atomic number 19:
Click on the first link on a line below to go directly to a page where "atomic number 19" is defined.

General (8 matching dictionaries)

1. atomic number_19: Vocabulary.com [home, info]
2. atomic number_19: Dictionary.com [home, info]
3. Atomic number 19: Rhymezone [home, info]
4. atomic number_19: Free Dictionary [home, info]
5. atomic number_19: Mnemonic Dictionary [home, info]
6. atomic number_19: WordNet 1.7 Vocabulary Helper [home, info]
7. atomic number_19: LookWAYup Translating Dictionary/Thesaurus [home, info]
8. atomic number_19: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

9. atomic number_19: Encyclopedia [home, info]

Quick definitions from WordNet (Atomic number 19) ▸ noun:  a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite ▸ Words similar to atomic number 19 ▸ Usage examples for atomic number 19 ▸ Idioms related to atomic number 19 (New!) ▸ Words that often appear near atomic number 19 ▸ Rhymes of atomic number 19 ▸ Invented words related to atomic number 19