(of cooking, particularly meats) Cooked somewhat lightly, so the meat is no longer red, but is not brown (in the case of beef); cooked to a degree between rare and medium.

To choose or provide a moderate option between two extremes.

(humorous) Unconscious and near death.

a radio wave with a frequency between 300 kHz and 3 MHz.

(of wine, cider) between dry and medium sweetness

(biology) The simplest tissue culture medium (containing the minimum of nutrients) that would support the proliferation of cells

plural of happy medium

(idiomatic) A balanced position between two opposite extremes.

Any medium that is rich in sensory data (e.g. high-definition film) and thus requires relatively little involvement by the viewer, reader, etc. in order to be consumed.

(astronomy, plasma physics) The gas and plasma in the region surrounding a galaxy, beyond the galactic disc or ovoid, or interstellar medium (ISM), but within the galaxy's virial radius.