HyperDic: protactinium

English > 1 sense of the word protactinium:
NOUNsubstanceprotactinium, protoactinium, Pa, atomic number 91a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
English > protactinium: 1 sense > noun 1, substance
MeaningA short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead.
Synonymsprotoactinium, Pa, atomic number 91
Broadermetallic element, metalAny of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Spanishnúmero atómico 91, protactinio, protoactinio, protoactinium
Catalanprotactini, protactinio, protoactini, protoactinium

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