rem

Root font measure

Rem is a unit of radiation dosage measuring the biological effect of ionizing radiation on human tissue.

The name comes from "roentgen equivalent man." Though largely replaced by the sievert in scientific contexts, rem remains common in American regulatory and medical settings: The technician's annual exposure was well under the five-rem limit. (Capitalized REM is rapid eye movement sleep.)

unit

roentgen

Radiation exposure unit

millirem · dosimetry · exposure · ionizing · absorbed · biological · health · physics · measurement · radiological

computing

remark

Spoken comment or note

annotation · code · programming · instruction · documentation · line · syntax · batch · script · command

Categories
Opposites
unit scaling reference

rempixel

Smallest display unit

pt · absolute units · cm · mm · in

radiation measurement approach

remrad

Exposure measurement unit

gray · roentgen · exposure · curie

sleep stage type

remnon-REM

Sleep stage without rapid eye movement

NREM · non-REM sleep · deep sleep · dreamless sleep · light sleep

Phrases
Family

remove, removed, removal, removing, removes, remit, remittance, remover, remitting

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G