Definition of heavy water in English:
Water in which the hydrogen in the molecules is partly or wholly replaced by the isotope deuterium, used especially as a moderator in nuclear reactors.
- The most common moderators are substances of low atomic weight such as heavy water (deuterium oxide) or graphite.
- Because of their heavier weight, heavy water molecules evaporate less readily than light water molecules.
- In heavy water the hydrogen bonds are slightly stronger, and this changes the properties of the liquid sufficiently to disrupt the lubricating effect water has on biochemical processes.
Definition of heavy water in:
- British & World English dictionary
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