What does PEE stand for?

Perfection - NCIC firearms make code (NCIC)

Phosphate-Eliminating Enzyme (DMAA)

Photo-Electric Emission (SAUS)

Photoelectron Emission - Also, OSEE

Photoemission Effect

Photoferroelectric Effect (SAUS)

Polycrystalline Electrode with Epitaxy (SAUS)

Pressure Environmental Equipment (NVT)

Program Estimating Equation

Proof and Experimental Establishment - British

Punctate Epithelial Erosions (SAUS)

Taje - Language code (ETLW)

Talkeetna, AK - Location identifier - FAA (FAAL)