say it: MEE-dee-uhm
medium is a noun and adjective meaning "a means or instrumentality for storing or communicating information". It carries 13 recorded senses.
a means or instrumentality for storing or communicating information
an intervening substance through which signals can travel as a means for communication
(bacteriology) a nutrient substance (solid or liquid) that is used to cultivate micro-organisms
bacteriology
(biology) a substance in which specimens are preserved or displayed
biology
someone who serves as an intermediary between the living and the dead
“he consulted several mediums”
(usually plural) transmissions that are disseminated widely to the public
an occupation for which you are especially well suited
“in law he found his true metier”
around the middle of a scale of evaluation
“an orange of average size”
“intermediate capacity”
“medium bombers”
(meat) cooked until there is just a little pink meat inside
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 medium 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.