Associations to the word «Protoactinium»
Noun
Adjective
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Wiktionary
PROTOACTINIUM, noun. Alternative form of protactinium (dated)
Dictionary definition
PROTOACTINIUM, noun. A short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead.
Wise words
Don't use words too big for the subject. Don't say
"infinitely" when you mean "very"; otherwise you'll have no
word left when you want to talk about something really
infinite.