Open English Wordnet
Nouns
(n)mediuma means or instrumentality for storing or communicating information (n)mediumthe surrounding environment“fish require an aqueous medium” (n)mediuman intervening substance through which signals can travel as a means for communication (n)culture medium, medium(bacteriology) a nutrient substance (solid or liquid) that is used to cultivate micro-organisms (n)mediuma liquid with which pigment is mixed by a painter (n)medium(biology) a substance in which specimens are preserved or displayed (n)mediuman intervening substance through which something is achieved“the dissolving medium is called a solvent” (n)mediuma state that is intermediate between extremes; a middle position“a happy medium” (n)medium, mass medium(usually plural) transmissions that are disseminated widely to the public (n)metier, mediuman occupation for which you are especially well suited“in law he found his true metier” Adjectives
(s)average, intermediate, mediumaround the middle of a scale of evaluation“an orange of average size”,
“intermediate capacity”,
“medium bombers” (s)medium(meat) cooked until there is just a little pink meat inside 