hydrogen bond

noun

1. a type of chemical bond in which a hydrogen atom that has a covalent link with one of the electronegative atoms (F, N, O) forms an electrostatic link with another electronegative atom in the same or another molecule.

hydrogen bond

noun

1. a weak chemical bond between an electronegative atom, such as fluorine, oxygen, or nitrogen, and a hydrogen atom bound to another electronegative atom. Hydrogen bonds are responsible for the properties of water and many biological molecules

hydrogen bond

1. A chemical bond formed between an electropositive atom (typically hydrogen) and a strongly electronegative atom, such as oxygen or nitrogen. Hydrogen bonds are responsible for the bonding of water molecules in liquid and solid states, and are weaker than covalent and ionic bonds.

Word History and Origins

Origin of hydrogen bond¹

First recorded in 1920–25

Example Sentences

So when a molecule of water has the opportunity to hydrogen bond with something, it will.

From Scientific American

“I can close my eyes and tell you, ‘Aha, there’s a protein-to-water hydrogen bond that just formed,” he said as the track played out.

From Los Angeles Times

“The position of protons along the hydrogen bond differed only by about 20 picometers,” Guo says—less than half the length of a hydrogen atom itself.

From Scientific American

That’s the hydrogen bond for you ladies — a chemical reminder that if things are too good to be true, they probably are.”

From Washington Post

The Patent, a copy of which is attached hereto, describes the concept of self-assembly driven by the hydrogen bond in any living organism.

From Nature