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Protactinium

nounid 116559·updated May 18, 2026
verified

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

Attested in

No recorded attestations. They are written when an MWE tagging stage is completed, stamped with the pack version and the document’s digest.

Classifications

Entity Type

Unknownauthoritativeglossary_import_default_pending_classifier

Sensitivity

unclassified

Information Class

unclassified

Variants

synonym
protoactinium
plural
Protactiniums
possessive
Protactinium's
pluralpossessive
Protactiniums'

Framework definitions

Wordset Dictionary1 senseview framework →
§1
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
Legacy lexicon import1 senseview framework →
§1 · legacy_primary
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
DR-088 backfill from the noun definition column

Outgoing relationships

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Incoming relationships

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No other term currently asserts a relationship to this one.