atomic hydrogen

noun Chemistry.

hydrogen in the form of single atoms, rather than molecules, which makes it extremely reactive.

Nearby words

atomic energy, atomic energy authority, atomic energy commission, atomic force microscope, atomic heat, atomic hydrogen, atomic mass, atomic mass unit, atomic number, atomic orbital, atomic pile

Also called active hydrogen.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019