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(Larus atricilla). In summer the head is nearly black, the back slate color, and the five outer primaries black. -- Laughing hyena (Zoöl.), the spotted hyena. See Hyena. -- Laughing jackass (Zoöl.), the great brown kingfisher (Dacelo gigas), of Australia; -- called also giant kingfisher, and gogobera. -- Laughing ow…

er structure and having a single-pitched roof; -- called also penthouse, and to-fall. The outer circuit was covered as a lean-to, all round this inner apartment. De Foe.

Rays emanating from the outer surface of a plate composed of any material permeable by cathode rays, as aluminium, which forms a portion of a wall of a vacuum tube, or which is mounted within the tube and exposed to radiation from the cathode. Lenard rays are similar in all their known properties to cathode rays. So ca…

Armed with light weapons or accouterments.

A lining within the cylinder, in which the piston works and between which and the outer shell of the cylinder a space is left to form a steam jacket.

The outer part of the solid earth, the portion undergoing change through the gradual transfer of material by volcanic eruption, the circulation of underground water, and the process of erosion and deposition. It is, therefore, regarded as a third mobile envelope comparable with the hydrosphere and atmosphere.…

A waterproof outer garment; -- so called from the name of the inventor.

The outermost of the three small auditory bones, ossicles; the hammer. It is attached to the tympanic membrane by a long process, the handle or manubrium. See Illust. of Far.

A loose outer garment worn the 16th and 17th centuries.

Any free, outer membrane.

One of the lower or outer jaws of arthropods.

in the epithelial cells of the external layer of the retina (then called fuscin), in the outer layer of the choroid, and elsewhere. It is supposed to be derived from the decomposition of hemoglobin.

The middle bark of a tree; the green layer of bark, usually soon covered by the outer or corky layer, and obliterated.

lination between stars by observations of the times at which the stars cross the inner or outer periphery of the ring. -- Double image micrometer, a micrometer in which two images of an object are formed in the field, usually by the two halves of a bisected lens which are movable along their line of section by a screw…

An opening in the outer coat of a seed, through which the fecundating pollen enters the ovule. -- Mi*crop"y*lar, a.

. Its back is gray; the tail and wings are blackish, with a white patch on each wing; the outer tail feathers are partly white. The name is also applied to other species of the same genus, found in Mexico, Central America, and the West Indies. -- Mocking thrush (Zoöl.), any species of the genus Harporhynchus, as the b…

in New Britain, and noted for its agility in running and leaping. It is smaller and has stouter legs than the common cassowary. Its crest is biloted; the neck and breast are black; the back, rufous mixed with black; and the naked skin of the neck, blue.

nds but not stretched in a gate. Muley axle (Railroad), a car axle without collars at the outer ends of the journals. Forney.

The portico in front of ancient churches; sometimes, the atrium or outer court surrounded by ambulatories; -- used, generally, for any vestibule, lobby, or outer porch, leading to the nave of a church.

The delicate outer sheath of a nerve fiber; the primitive sheath.