Definition of pk in English:

pk

  • 1Park.

  • 2Peak.

  • 3Peck(s).

  • 4Pack.

Definition of PK in English:

PK

  • 1Pakistan (international vehicle registration).

  • 2Psychokinesis.

Definition of pK in English:

pK

noun

Chemistry
  • A figure expressing the acidity or alkalinity of a solution of a weak electrolyte in a similar way to pH, equal to −log10K, where K is the dissociation (or ionization) constant of the electrolyte.

    • ‘In the yeast variant, the apparent pK of the alkaline transition is an intermediate value between the pKs of two ionizations.’
    • ‘The average experimental residue pKs are slightly stabilized relative to what is found in small peptides with a modest standard deviation.’
    • ‘With SCCE 40% of the pKs are in error by this amount and 7% have errors greater than 4 pH units.’
    • ‘The pKs were calculated using a modified Tanford-Kirkwood pK algorithm.’
    • ‘In addition, several residues take heavy atom conformations different from that found in the protein data file at some point in the pH titration, and these have significant impact on calculated pKs.’

Origin

From p as in pH, and K representing a constant.