We found 14 dictionaries that define the word alkali metals:

General (7 matching dictionaries)

1. alkali metals: Merriam-Webster
2. alkali metals: Collins English Dictionary
3. alkali metals: Vocabulary.com
4. alkali metals: Wiktionary
5. Alkali metals: Wikipedia, the Free Encyclopedia
6. alkali metals: Stammtisch Beau Fleuve Acronyms
7. Alkali metals: TheFreeDictionary.com

Computing (1 matching dictionary)

8. Metals, alkali, alkali metals: Encyclopedia

Medicine (4 matching dictionaries)

9. alkali metals: Merriam-Webster Medical Dictionary
10. Medical Dictionary (No longer online)
11. online medical dictionary (No longer online)
12. Alkali metals, Metals, alkali: Medical dictionary

Science (1 matching dictionary)

13. Chemistry Dictionary (No longer online)

Tech (1 matching dictionary)

14. Explosives (No longer online)

(Note: See alkali_metal as well.)

Definitions from Wiktionary (alkali metal) ▸ noun:  (inorganic chemistry) Any of the soft, light, reactive metals of Group 1 of the periodic table; lithium, sodium, potassium, rubidium, cesium, and francium. ▸ Also see alkali_metal ▸ Words similar to alkali metals ▸ Usage examples for alkali metals ▸ Idioms related to alkali metals ▸ Wikipedia articles (New!) ▸ Words that often appear near alkali metals ▸ Rhymes of alkali metals ▸ Invented words related to alkali metals