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