isoelectric point
noun Chemistry.
the pH at which a substance is electrically neutral or at which it is at its minimum ionization.
Origin of isoelectric point
First recorded in 1895–1900
Words nearby isoelectric point
isoelastic,
isoelectric,
isoelectric electroencephalogram,
isoelectric line,
isoelectric period,
isoelectric point,
isoelectronic,
isoenergetic,
isoenzyme,
isoerythrolysis,
isoflavone
British Dictionary definitions for isoelectric point
isoelectric point
noun
biochem
the pH value at which the net electric charge of a molecule, such as a protein or amino acid, is zero
Medical definitions for isoelectric point
isoelectric point
n.
The pH at which the electrolyte concentration of an amphoteric substance such as protein is electrically zero because the concentration of its cation form equals the concentration of its anion form.