Chemical Element Pu
This page is the CodyCross answer for the clue below from California, Group 1158, Puzzle 1 (Painted Ladies).
Question is: Chemical Element Pu
and the answer is: PLUTONIUM
Word Meaning:
PLUTONIUM — The transuranic chemical element with atomic number 94 and symbol Pu: a silvery-gray fissile radioactive actinide metal that tarnishes when exposed to air.
Definitions from Wiktionary.