eka-protactinium (English, noun)
expansion: eka-protactinium (uncountable)
Senses:
head_nr: 2
glosses: unbitrium (Ubt), an unsynthesized chemical element with atomic number 123.
tags: uncountable
head_nr: 2
glosses: unquadunium (Uqu), an unsynthesized element with atomic number 141.
tags: uncountable
Forms: