heavy water

noun

Definition of heavy water

1 :the compound D2O composed of deuterium and oxygen called also deuterium oxide
2 :water enriched in deuterium

First Known Use of heavy water

1933


Medical Dictionary

heavy water

noun

medical Definition of heavy water

1 :the compound D2O composed of deuterium and oxygen called also deuterium oxide
2 :water having a higher-than-usual proportion of deuterium among its hydrogen atoms

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