Knife-edge: alternatives and connections

A small periodical change of position in the stars and other heavenly bodies, due to the combined effect of the motion of light and th…

Sharp at the end; ending in a sharp point; pointed; -- opposed to blunt or obtuse; as, an acute angle; an acute leaf.

Having acute angles; as, an acute-angled triangle, a triangle with every one of its angles less than a right angle.

Relating to an angle or to angles; having an angle or angles; forming an angle or corner; sharp-cornered; pointed; as, an angular figu…

An anchor is said to be astay, when, in heaving it, an acute angle is formed between the cable and the surface of the water.

A tool or instrument of steel, or of iron with a steel edge or blade, for felling trees, chopping and splitting wood, hewing timber, e…

Of or pertaining to an axis; of the nature of, or resembling, an axis; around an axis.

A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e.…

A lever whose two arms form a right angle, or nearly a right angle, having its fulcrum at the apex of the angle. It is used in bell pu…

Any angle other than a right angle; the angle which one surface makes with another when they are not at right angles; the slant or inc…

An interior angle or notch cut across a piece of timber, for the reception of the edge of another, as that in a rafter to be laid on a…

A tool with a hard, smooth, rounded end or surface, as of steel, ivory, or agate, used in smoothing or polishing by rubbing. It has a…

That diagonal or lateral axis in a monoclinic crystal which makes an oblique angle with the vertical axis. See Crystallization.

A piece of ground terminating in a point or acute angle.

A starling or other structure attached to the pier of a bridge, with an angle or edge directed up stream, in order better to resist th…

The movement of the axis of a piece in a vertical plane; also, the angle of elevation, that is, the angle between the axis of the piec…

An instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each other, one of them parallel t…

To make the surface of (anything) flat or smooth; to dress the face of (a stone, a casting, etc.); esp., in turning, to shape or smoot…