: an effort, approach, or policy that aims to maintain the level of exposure to radiation or other hazardous materials (such as toxic chemicals) as far below regulatory limits as possible
Inherently, ALARA aims to achieve the lowest possible dose to the population … Jonathan M. Samet et al., in Cancer Epidemiology and Prevention
often used before another noun
… believe strongly that the ALARA principle should be followed whenever possible … Eliot Siegel, Applied Radiology

Word History

Etymology

as low as reasonably achievable

Dictionary Entries Near ALARA

Cite this Entry

“ALARA.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ALARA. Accessed 30 Nov. 2022.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ