Definition of protoactinium Protoactinium
pro•to•ac•tin•i•um
We found 2 definitions of protoactinium from 2 different sources.
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What does protoactinium mean?
WordNet
Noun |
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| protoactinium - a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead | ||
| protactinium, Pa, atomic number 91 | ||
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Part of speech
🔤- protoactinium, noun, singular of protoactiniums.
