Skip to main content
SAR

SAR

1 7.4
The amount of radio energy the body absorbs from a phone or device
  • noun
  • /ɛs-eɪr/
  • Specialized
translation icon : tasa de absorción específica
  • To determine the absorbed dose by the subjects in the RF field, dosimetric measurements of SAR were performed using carcasses of 290 g rats individually tested within the corner reflector.
  • specific absorption rate (SAR
  • specific absorption rate (SAR
  • specific absorption rate (SAR

Examples

  • On that day, Macau was reverted back to Chinese rule and was formally designated as a Special Administrative Region (SAR) of China.

    Academic text (2007)
  • The effects of radio frequency (RF) fields depend on the exposure level, power density, and specific absorption rate (SAR).

    Academic text (1991)
  • The SAR of this smartphone indicates how much radiofrequency energy it absorbs while in use.

  • When choosing a mobile phone, consider checking the SAR to understand its energy absorption level.

  • The Federal Communications Commission sets a maximum SAR of 1.6 watts per kilogram for cell phones sold in the U.S.

Synonyms

dose rate
vsSAR
  • Specialized
1 6.3

Amount of radiation received in a given time

focuses on energy absorbed by the body from electromagnetic fields

Surface Forms

SAR singular
SARS plural

Etymology

SAR stands for specific absorption rate, where specific means 'particular', absorption means 'soaking up', and rate means 'amount over time'. So SAR tells how much energy your body soaks up from a phone or device, which is why people check it for safety.