hydrogenbond

hydrogen bond

noun

1. a weak chemical bond between one electronegative atom, such as oxygen, nitrogen, or fluorine, and a hydrogen atom attached to another electronegative atom, typically occurring between molecules or within different parts of a large molecule.
2. a weak bond within a molecule between an electronegative atom and a hydrogen atom bonded to a different electronegative atom.

adjective

1. relating to or involving a hydrogen bond.

Meanings

The noun "hydrogen bond" refers to a weak chemical bond formed between an electronegative atom and a hydrogen atom attached to another electronegative atom. It can occur between molecules or within different parts of a large molecule. The term can also indicate a weak bond within a molecule between an electronegative atom and a hydrogen atom bonded to a different electronegative atom.

The adjective "hydrogen bond" is used to describe something that is related to or involves a hydrogen bond.

Synonyms

None

Antonyms

None

Collocations

None

Expanded Vocabulary

None

Collins Dictionary

The Collins Dictionary defines "hydrogen bond" as a weak chemical bond between two atoms, typically involving hydrogen, which is attracted to an electronegative atom such as oxygen or nitrogen.

Oxford Dictionary

The Oxford Dictionary defines "hydrogen bond" as a weak bond between two molecules, resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

Usage

The term "hydrogen bond" is widely used in the field of chemistry to describe the specific type of bond formed between hydrogen and electronegative atoms. It plays a crucial role in various biological and chemical processes.

Example Sentences

1. Water molecules are held together by hydrogen bonds.
2. The DNA double helix is stabilized by hydrogen bonds between complementary base pairs.
3. Hydrogen bonding in proteins contributes to their structure and stability.
4. Ice floats on water due to the hydrogen bonds that form a lattice structure.
5. Hydrogen bonds are weaker than covalent bonds.
6. The presence of hydrogen bonds affects the physical properties of substances.
7. Hydrogen bonding occurs between the hydrogen atom of one molecule and the oxygen atom of another molecule.
8. The strength of a hydrogen bond depends on the electronegativity of the atoms involved.
9. Hydrogen bonding is essential for the functioning of enzymes.
10. The formation of hydrogen bonds is influenced by temperature and pressure.
11. Intermolecular hydrogen bonding is important in determining the boiling points of compounds.
12. Hydrogen bonding is responsible for the unique properties of water.
13. The ability to form hydrogen bonds is a characteristic of certain functional groups.
14. In DNA, adenine forms hydrogen bonds with thymine.
15. Protein folding is influenced by hydrogen bonding between amino acid residues.
16. Hydrogen bonds play a role in the recognition of molecules by receptors.
17. Hydrogen bonding can occur between molecules of the same substance.
18. Hydrogen bonds can be disrupted by changes in pH.
19. Hydrogen bonding is important in the formation of secondary protein structures.
20. Hydrogen bonds are weaker than ionic or covalent bonds.