Era

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ERA

Abbreviation for electronic remittance advice.

effective radiating area

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ERA

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.

Era

a division of geological time, such as Cenozoic, Mesozoic, Palaeozoic, which is itself divided into periods. See GEOLOGICAL TIME.
References in periodicals archive ?
The era name comes with the hope that "We would like to create a society where Japanese people can be blooming all their flowers that they could create," he said.
Three appendices are included, listing a character index, Japanese era names 1555-1704, and presidents of the VOC factory in Japan 1609- 1700; a brief glossary at the start of the book includes foreign terms and definitions.
Even though Glenn Miller's nephew is one of the coleaders, the band's repertoire is wide-ranging and dips into the books of most of the major Swing Era names. Clarinettist Norman Brown impressed with his workouts on Benny Goodman and Woody Herman classics.