americium means the chemical element (symbol Am) with an atomic number of 95.
Among words judged in Lexicurio's Arena, americium ranks #7,316 of 21,231 for Qualifying.
americium is pronounced /ˌæməˈɹɪsiəm/.
Etymology
From Americ(as) + -ium, by analogy with europium.
noun
- The chemical element (symbol Am) with an atomic number of 95.