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