Era(redirected from Era names)
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Abbreviation for electronic remittance advice.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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.
Medical Dictionary, © 2009 Farlex and Partners
Eraa division of geological time, such as Cenozoic, Mesozoic, Palaeozoic, which is itself divided into periods. See GEOLOGICAL TIME.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005