heavy hydrogen

noun

1. either of the heavy isotopes of hydrogen, especially deuterium.
2. deuterium.

heavy hydrogen

noun

1. another name for deuterium

heavy hydrogen

1. See deuterium

Word History and Origins

Origin of heavy hydrogen¹

First recorded in 1930–35

Example Sentences

Now a complete list of your uranium-refining plants, your military reactors, heavy-water and heavy-hydrogen plants, and so on.

From Project Gutenberg