protactinium

noun

a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

Roots

protosprot- · Greek · first, before aktisactin- · Greek · ray (actinium)ium-ium · Latin · metallic element

Synonyms & related words for protactinium

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Words related to protactinium

Explore words related to protactinium — words associated with it, words that go with it, and its nearest matches in meaning. Related words include protoactinium, actinium, radioactinium, actinon, mendelevium, actinide, unniloctium, mesothorium. Click any word to make it the center of the map and keep exploring the web of connections.

Where does protactinium come from?

The word protactinium breaks down into 3 roots of Greek and Latin origin: prot-, from Greek protos (“first, before”); actin, from Greek aktis (“ray (actinium)”); and -ium, from Latin ium (“metallic element”). Explore each root to see other English words built from the same source.