We found 29 dictionaries that define the word americium:

General (17 matching dictionaries)

1. americium: Merriam-Webster
2. americium: Oxford Learner's Dictionaries
3. americium: American Heritage Dictionary of the English Language
4. americium: Collins English Dictionary
5. americium: Vocabulary.com
6. americium: Wordnik
7. americium: Wiktionary
8. americium: Webster's New World College Dictionary, 4th Ed.
9. americium: The Wordsmyth English Dictionary-Thesaurus
10. americium: Infoplease Dictionary
11. americium: Dictionary.com
12. Americium: Wikipedia, the Free Encyclopedia
13. americium: Rhymezone
14. americium: FreeDictionary.org
15. americium: Mnemonic Dictionary
16. americium: TheFreeDictionary.com
17. americium: Merriam-Webster

Business (1 matching dictionary)

18. americium: Financial dictionary

Computing (1 matching dictionary)

19. americium: Encyclopedia

Medicine (7 matching dictionaries)

20. americium: Merriam-Webster Medical Dictionary
21. Dorland's Illustrated Medical Dictionary (No longer online)
22. Americium: MedTerms.com Medical Dictionary
23. Medical Dictionary (No longer online)
24. online medical dictionary (No longer online)
25. americium: Medical dictionary
26. Americium: Drug Medical Dictionary

Science (3 matching dictionaries)

27. Americium: Extragalactic Astronomy
28. Americium: WebElements Periodic Table of the Elements
29. americium: WebElements Periodic Table of the Elements

Definitions from Wiktionary (americium) ▸ noun:  The chemical element (symbol Am) with an atomic number of 95. Similar: AM, atomic number 95, actinium, curium, uranium, protactinium, europium, aluminium, thorium, samarium, more... Phrases: Isotopes of americium, more... Adjectives: trivalent, separate, tripositive, tetravalent, unoxidized, new, pentavalent ▸ Words similar to americium ▸ Usage examples for americium ▸ Idioms related to americium ▸ Wikipedia articles (New!) ▸ Popular adjectives describing americium ▸ Words that often appear near americium ▸ Rhymes of americium ▸ Invented words related to americium