HYDROGEN ION

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does hydrogen ion mean? 

• HYDROGEN ION (noun)
  The noun HYDROGEN ION has 1 sense:

1. a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus

  Familiarity information: HYDROGEN ION used as a noun is very rare.

 Dictionary entry details 

• HYDROGEN ION (noun)

Sense 1

Meaning:

A positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus

Classified under:

Nouns denoting natural objects (not man-made)

Hypernyms ("hydrogen ion" is a kind of...):

cation (a positively charged ion)

proton (a stable particle with positive charge equal to the negative charge of an electron)

Holonyms ("hydrogen ion" is a part of...):

hydrogen atom (an atom of hydrogen)

 Context examples 

A base is a substance that can accept hydrogen ions in water and can neutralize an acid.

(Basicity, NCI Dictionary)

In chemistry, a substance that can accept hydrogen ions in water and can neutralize an acid.

(Base, NCI Dictionary)

The hydrogen ion is secreted into the lumen by the luminal H(+)-ATPase.

(Collecting Duct Acid Secretion Pathway, NCI Thesaurus/KEGG)

A series of enzyme complexes in the inner mitochondrial membrane that transfer hydrogen ions into the intermembrane space.

(Electron-Transport Chain of the Respiratory Enzymes, NCI Thesaurus)

A protein complex found in the membrane of the endosome that transports hydrogen ions into the lumen to increase its acidity.

(Endosome Proton Pump, NCI Thesaurus)

An abnormally high hydrogen ion concentration (umbilical arterial blood pH less than 7 or a base deficit of greater than or equal to 12 mmol/L) in fetal blood or tissue.

(Fetal Acidosis, NCI Thesaurus)

A process in which the hydrogen ion concentration of a solution is decreased, resulting in an increase in alkalinity.

(Alkalinization, NCI Thesaurus)

A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals.

(Acid, NCI Dictionary)

A protein complex found in the membrane of the lysosome that transports hydrogen ions into the lumen to increase its acidity.

(Lysosome Proton Pump, NCI Thesaurus)

An acid is a substance that gives off hydrogen ions in water and forms salts by combining with certain metals.

(Acidification, NCI Dictionary)