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A molding, the convexity of which is one fourth of a circle, being a member just below the abacus in the Tuscan and Roman Doric capital; a torus; an ovolo.

A driver or a brassy with a convex face.

(Bot.), a leaf, the membranous part of which rises between the veins puckered elevations convex on one side and concave on the other.

The convexity of a ship behind, under the stern. Mar. Dict.

A molding, shaft of a column, or any other member of convex, rounded section, made to resemble the spiral twist of a rope; -- called also cable molding. Bower cable, the cable belonging to the bower anchor. -- Cable road, a railway on which the cars are moved by a continuously running endless rope operated by a statio…

A stone of convex form, highly polished, but not faceted; also, the style of cutting itself. Such stones are said to be cut en cabochon.

An upward convexity of a deck or other surface; as, she has a high camber (said of a vessel having an unusual convexity of deck).

An apparatus in which the images of extermal objects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the oulines may be traced.

A slightly convex mirror, commonly of black glass, used as a toy for viewing the reflected landscape.

A tube having a convex lens at one end and at the other a small opening or slit which is at the principal focus of the lens, used for producing a beam of parallel rays; also, a lens so used.

ss fitted with a sundial to tell the hour of the day. -- Compass plane (Carp.), a plane, convex in the direction of its length on the under side, for smoothing the concave faces of curved woodwork. -- Compass plant, Compass flower (Bot.), a plant of the American prairies (Silphium laciniatum), not unlike a small sunf…

ace or line, as of the curve of the of the inner surface of an eggshell, in opposition to convex; as, a concave mirror; the concave arch of the sky.

A flat-topped or convex cluster of flowers, each on its own footstalk, and arising from different points of a common axis, the outermost blossoms expanding first, as in the hawthorn.

ronoun. The waters couch themselves as may be to the center of this globe, in a spherical convexity. T. Burnet.

The increasing moon; the moon in her first quarter, or when defined by a concave and a convex edge; also, applied improperly to the old or decreasing moon in a like state.

e ovules of one plant by pollen from another. See Fertilization. -- Cross file, a double convex file, used in dressing out the arms or crosses of fine wheells. -- Cross fire (Mil.), lines of fire, from two or more points or places, crossing each other. -- Cross forked. (Her.) See under Forked. -- Cross frog. See un…

Having the form of a cylinder, or of a section of its convex surface; partaking of the properties of the cylinder. Cylindrical lens, a lens having one, or more than one, cylindrical surface. -- Cylindric, or Cylindrical, surface (Geom.), a surface described by a straight line that moves according to any law, but so as…

A flattish or convex flower cluster, of the centrifugal or determinate type, differing from a corymb chiefly in the order of the opening of the blossoms.

That which burns by refraction, as a double convex lens, or the sun's rays concentrated by such a lens, sometimes used as a cautery.

s pulling a part in all directions except one. Dovetail molding (Arch.), a molding of any convex section arranged in a sort of zigzag, like a series of dovetails. -- Dovetail saw (Carp.), a saw used in dovetailing.