RPE

RPE is a TLA:Retinal pigment epithelium — layer of the  retina.Rate of Perceived Exertion or RPE-scale.Residual pulse excitationRetail price equivalentRocket Propulsion Establishment, UK-based military research site at RAF Westcott.Rapid Palatal Expander, an orthodontic device placed at the roof of the mouth to widen the palate and provide more room for the teeth.
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