Pertaining to the middle; situated or existing between two extremities or extremes; intermediate in situation, rank, or degree: as, the medial letters of a word; a medial mark on an insect's wing.Mean: pertaining to a mean or average.In modern spiritualism, pertaining to a medium or to mediumship; mediumistic: as, medial faculties; medial phenomena.In zoology and anatomy, same as median and mesal.In botany, same as median.In modern music, a cadence, final or not, in which the next to the last chord is inverted; an inverted cadence.n. In Gr. grammar, one of the mutes β, γ, δ, as if intermediate in sound between the surd mutes π, κ, τ and the aspirates φ, χ, θ. The term medial (Latin media) translates the technical Greek μέσον, sc. α%27φωνον, middle mute.n. In entomology, same as median vein (which see, under median).n. In geometry, same as median, 1.