from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A silvery metallic synthetic radioactive transuranic element. Its longest lived isotope is Cm 247 with a half-life of 16.4 million years. Atomic number 96; melting point (estimated) 1,350°C; valence 3. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A transuranic chemical element (symbol Cm) with an atomic number of 96.
from the GNU version of the Collaborative International Dictionary of English
- n. a radioactive transuranic element of atomic number 96, having an atomic weight of 247 for its most stable isotope (half-life 1.6 x 107 years). The chemical symbol is Cm.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei
After Marie Curie and Pierre Curie.(American Heritage® Dictionary of the English Language, Fourth Edition)
Named after Pierre and Marie Curie. (Wiktionary)