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What does PA stand for?

PA stands for Proton Affinity

This definition appears frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 249 other meanings of PA in our Acronym Attic

Samples in periodicals archive:

Because most organic compounds - including most explosives and chemical warfare ingredients - have a proton affinity higher than that of protonated water, the proton "jumps" from the protonated water to the target molecule, forming a protonated, positively charged ion.