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Situated in the middle; lying in a plane dividing a bilateral animal into right and left halves; -- said of unpaired organs and parts; as, median coverts. Median line. (a) (Anat.) Any line in the mesial plane; specif., either of the lines in which the mesial plane meets the surface of the body. (b) (Geom.) The line dra…

The middle or inferior horn of each lateral ventricle of the brain. B. G. Wilder.

Middle; median; in, or in the region of, the mesial plane; internal; -- opposed to lateral. Mesial plane. (Anat.) See Meson.

The postero-lateral ossification in the sternum of birds; also, the part resulting from such ossification.

podaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected…

lization in which the vertical axis is inclined to one, but at right angles to the other, lateral axis. See Crystallization.

A variety of diving bell, the lateral as well as vertical motions of which are controlled, by the occupants.

One of the two lateral processes or elements which form the neural arch.

In passing; incidentally; by the way. Obiter dictum (Law), an incidental and collateral opinion uttered by a judge. See Dictum, n., 2(a).

Not direct in descent; not following the line of father and son; collateral. His natural affection in a direct line was strong, in an oblique but weak. Baker. Oblique angle, Oblique ascension, etc. See under Angle,Ascension, etc. -- Oblique arch (Arch.), an arch whose jambs are not at right angles with the face, and w…

A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.

The diagonal or lateral axis in a monoclinic crystal which is at right angles with the vertical axis.

A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; -- sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles. Parallelogram of velocities, forces, accelerations, momenta, etc. (Mech.), a parallelog…

One of the lateral appendages of an annelid; -- called also foot tubercle.

Palmate, with the lateral lobes cleft into two or more segments; -- said of a leaf. -- Ped"ate*ly, adv.

A figure composed of two equilateral triangles intersecting so as to form a six-pointed star, -- used in early ornamental art, and also with superstitious import by the astrologers and mystics of the Middle Ages.

e family Phalangistidæ. They are arboreal, and the species of Petaurus are furnished with lateral parachutes. See Flying phalanger, under Flying.

agus. It has one or two external openings through the nose in the higher vertebrates, and lateral branchial openings in fishes and some amphibias.

hat is, the ratio of the height to the half span; as, a pitch of six rise to ten run. Equilateral pitch is where the two sloping sides with the span form an equilateral triangle. -- Pitch of a plane (Carp.), the slant of the cutting iron. -- Pitch pipe, a wind instrument used by choristers in regulating the pitch of…

Having an oblique lateral deformity of the skull.