'nobelium' definitions:

Definition of 'nobelium'

From: WordNet
noun
A radioactive transuranic element synthesized by bombarding curium with carbon ions; 7 isotopes are known [syn: nobelium, No, atomic number 102]

Definition of 'nobelium'

From: Elements
  • Symbol: No
  • Atomic number: 102
  • Atomic weight: (254)
  • Radioactive metallic transuranic element, belongs to the actinoids. Seven known isotopes exist, the most stable being No-254 with a half-life of 255 seconds. First identified with certainty by Albert Ghiorso and Glenn T. Seaborg in 1966. Unnilbium has been proposed as an alternative name.