Dictionary definition · medium
noun
- a means or instrumentality for storing or communicating information
- the surrounding environment"fish require an aqueous medium"
- 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
- a liquid with which pigment is mixed by a painter
- (biology) a substance in which specimens are preserved or displayed
- an intervening substance through which something is achieved"the dissolving medium is called a solvent"
- a state that is intermediate between extremes; a middle position"a happy medium"
- 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
adjective
- around the middle of a scale of evaluation"an orange of average size"
- (meat) cooked until there is just a little pink meat inside
Source: Open English WordNet (CC BY 4.0).