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Being in the middle; running through the middle; as, a median groove.

The third above the keynote; -- so called because it divides the interval between the tonic and dominant into two thirds.

An actor or player in comedy. "The famous comedian, Roscius." Middleton.

Of or pertaining to the interval or zone along the sea bottom, at the depth of between fifty and one hundred fathoms. E. Forbes.

Intermediate. [Obs.]

Next to the median (on either side); as, the submedian teeth of mollusks.

The sixth tone of the scale; the under mediant, or third below the keynote; the superdominant.

A muscle which serves to draw a part out, or form the median line of the body; as, the abductor oculi, which draws the eye outward.

A comedian. [Obs.] Steele.

The median plate of the plastron of turtles; -- called also entosternum.

A median bone connected with the sternum, in many vertebrates; the interclavicle.

ral fins, corresponding to the fore and hind legs of the higher animals. -- Unpaired, or Median, fins (Zoöl.), the dorsal, caudal, and anal fins.

The muscular locomotive organ of a mollusk. It is a median organ arising from the ventral region of body, often in the form of a flat disk, as in snails. See Illust. of Buccinum.

Having the outer tail feathers longer than the median ones; swallow-tailed; -- said of many birds. Fork-tailed flycatcher (Zoöl.), a tropical American flycatcher (Milvulus tyrannus). -- Fork-tailed gull (Zoöl.), a gull of the genus Xema, of two species, esp. X. Sabinii of the Arctic Ocean. -- Fork-tailed kite (Zoöl.)…

The median, convex lobe of the head of a trilobite. See Trilobite.

An order of pelagic Gastropoda, having the foot developed into a median fin. Some of the species are naked; others, as Carinaria and Atlanta, have thin glassy shells.

us of sharks (Hybodus), especially in the form of the teeth, which consist of a principal median cone with smaller lateral ones.

A median process on the furculum, or merrythought, of many birds, where it is connected with the sternum.

The median of the three elements composing the centra of the vertebræ in some fossil batrachians.

Having a median ridge; carinate; as, a keeled scale.