Noun

1. A means or instrumentality for storing or communicating information
2. The surrounding environment
3. An intervening substance through which signals can travel as a means for communication
4. (bacteriology) a nutrient substance (solid or liquid) that is used to cultivate micro-organisms
5. A liquid with which pigment is mixed by a painter
6. (biology) a substance in which specimens are preserved or displayed
7. An intervening substance through which something is achieved
8. A state that is intermediate between extremes; a middle position
9. Someone who serves as an intermediary between the living and the dead
10. (usually plural) transmissions that are disseminated widely to the public
11. An occupation for which you are especially well suited