en actinium (n, substance)
― IsA ⟶
Weight: 2.0
en chemical element (n, substance) Source: Open Multilingual WordNet
en actinium (n)
― IsA ⟶
Weight: 1.0
en actinide Source: German Wiktionary
en actinium (n)
― IsA ⟶
Weight: 1.0
en radioactive substance (n) Source: OpenCyc 2012
en actinium (n)
― IsA ⟶
Weight: 1.0
en unalloyed metal (n) Source: OpenCyc 2012
en actinium (n)
― IsA ⟶
Weight: 1.0
en chemical element Source: German Wiktionary
en One of the chemical elements
― IsA ⟶
Weight: 1.0
en Actinium Source: Open Mind Common Sense contributors laserjoy