Era(redirected from Era names)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Abbreviation for electronic remittance advice.
effective radiating area,
The area of a therapeutic ultrasound head that produces useful ultrasonic energy, measured in square centimeters (cm2). The effective radiating area is calculated by identifying all points where the ultrasonic energy is at least 5% of the maximum measured intensity at the transducer's surface.