say it: rem
rem is a noun meaning "a recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep". It carries 2 recorded senses.
a recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep
(roentgen equivalent man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for rem come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.