Meaning of ptilolite | Babel Free
Definitions
Mordenite; once designated as a new mineral, it was discovered to be identical with mordenite.
countable, dated, uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.