oxylith

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• oxylith — noun A substance, containing sodium peroxide and other salts, which releases oxygen upon contact with water. Syn: oxygen stone …   Wiktionary

• oxygen — noun /ɒksɪʤən̩/ a) A chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. b) Molecular oxygen (O), a colorless, odorless gas at room temperature. Syn: E948 …   Wiktionary

• oxygen stone — noun oxylith …   Wiktionary