Definition of Protoactinium

1. Noun. A short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead.

Exact synonyms: Atomic Number 91, Pa, Protactinium
Generic synonyms: Metal, Metallic Element

Definition of Protoactinium

1. Noun. (alternative form of protactinium) (qualifier dated) ¹

¹ Source: wiktionary.com

Lexicographical Neighbors of Protoactinium

protistologist
protistologists
protistology
protists
protium
protiums
proto
proto(a)
proto-
proto-industries
proto-industry
proto-language
proto-languages
proto-oncogene
proto-oncogenes
protoactinium (current term)
protoanthophyllite
protoanthropology
protoarchaeology
protoarcheology
protoavis
protobacco
protobacterial
protobacterium
protobinary
protobiont
protobionts
protobird
protobirds
protoboard

Literary usage of Protoactinium

Below you will find example usage of this term as found in modern and/or classical literature:

1. Evaluation of Speciation Technology: Workshop Proceedings, Tokai-Mura by OECD Nuclear Energy Agency (2001)
"protoactinium is another element of concern in the thorium-" U fuel cycle. Although heavy element production is a minor activity compared to nuclear fuel ..."

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