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As seen or estimated from the center of the moon; with the moon central.

The quality or state of being self-centered.

Half of a diameter; a right line, or the length of a right line, drawn from the center of a circle, a sphere, or other curved figure, to its circumference or periphery; a radius.

The seat of sensation; the nervous center or centers to which impressions from the external world must be conveyed before they can be perceived; the place where external impressions are localized, and transformed into sensations, prior to being reflected to other parts of the organism; hence, the whole nervous system,…

impulses; -- especially applied to those nerves and nerve fibers which convey to a nerve center impulses resulting in sensation; also sometimes loosely employed in the sense of afferent, to indicate nerve fibers which convey impressions of any kind to a nerve center.

which may be moved from one side of a vessel to another as safety requires. -- Shifting center. See Metacenter. -- Shifting locomotive. See Switching engine, under Switch.

Composed of four strands, and laid right-handed with a heart, or center; -- said of rope. See Illust. under Cordage.

See Exterior, and Illust. of Ravelin. -- Interior side (Fort.), the line drawn from the center of one bastion to that of the next, or the line curtain produced to the two oblique radii in front. H. L. Scott. -- Side by side, close together and abreast; in company or along with. -- To choose sides, to select those w…

A small piece of metal, fixed or movable, on the breech, muzzle, center, or trunnion of a gun, or on the breech and the muzzle of a rifle, pistol, etc., by means of which the eye is guided in aiming. Farrow.

The motion of the center of resistance of the float of a paddle wheel, or the blade of an oar, through the water horozontally, or the difference between a vessel's actual speed and the speed which she would have if the propelling instrument acted upon a solid; also, the velocity, relatively to still water, of the backw…

while those of a cutter are capable of being readily shifted. The sloop usually carries a centerboard, and depends for stability upon breadth of beam rather than depth of keel. The two types have rapidly approximated since 1880. One radical distinction is that a slop may carry a centerboard. See Cutter, and Illustratio…

To turn about a fixed point, usually the center or axis, as a spar or piece of timber; to turn; -- used also of any heavy body.

a snap. To snap back (Football), to roll the ball back with the foot; -- done only by the center rush, who thus delivers the ball to the quarter back on his own side when both sides are ranged in line. -- To snap off. (a) To break suddenly. (b) To bite off suddenly.

n early spring. Its breast is covered with dusky brown streaks which form a blotch in the center. -- Song thrush (Zoöl.), a common European thrush (Turdus musicus), noted for its melodius song; -- called also mavis, throsite, and thrasher.

ds made fast so that a purchase can be hooked to the bight; also, a rope made fast in the center so that both ends can be used.

r a single surface, which in every part is equally distant from a point within called its center.

. It is measured by the portion within the solid angle of the surface of any sphere whose center is the angular point. -- Spherical polygon,portion of the surface of a sphere bounded by the arcs of three or more great circles. -- Spherical projection, the projection of the circles of the sphere upon a plane. See Proj…

by the intersection of the surface of an oblique cone with the surface of a sphere whose center is at the vertex of the cone.

ions of the cord, while the peripheral white matter is composed of nerve fibers only. The center of the cord is traversed by a slender canal connecting with the ventricles of the brain.

a lathe or drilling machine, etc., which causes the work to revolve, or carries a tool or center, etc.