deuterium
heavy hydrogen

Fusion experiments also rely on heavy hydrogen, which fuses more easily, and gas densities can be moderate.

He died just before the discovery of the neutron, the positron and heavy hydrogen.

This isotope effect of heavy hydrogen is magnified further in biological systems, which are very sensitive to small changes in the solvent properties of water.

Therefore, heavy hydrogen had to be compressed.

Further, evidence was given for the extent of the hypothesized carbonyl shift by using heavy hydrogen in the solvent water, DO.

Plutonium-238 is synthesized by bombarding uranium-238 with deuterons (D, the nuclei of heavy hydrogen) in the following reaction:

I was wondering what wavelength we would see if we used heavy hydrogen instead of regular hydrogen.

That contains heavy water, which is water laced with deuterium, heavy hydrogen.

It is made of molecules consisting of oxygen and heavy hydrogen.

The scientists decided to use two different forms of heavy hydrogen, deuterium and tritium, but efforts at computer simulation of the expected reaction ran into trouble.