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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Erbium or terbium:

ELEMENT: Erbium, terbium or ytterbium
RAREEARTHMETALS: Erbium, terbium and the like
RARE: Like terbium or erbium
RARE: Like erbium or terbium
RAREEARTH: Erbium or terbium
ELEMENT: Erbium or terbium