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taves (Mus.), consecutive fifths or octaves, not sounded, but suggested or implied in the parallel motion of two parts towards a fifth or an octave.

he moving extremity of a line the other end of which is fixed, this line being constantly parallel to the direction of motion of, and having its length constantly proportional to the velocity of, a point moving in any path; -used in investigations respecting central forces.

r real or imagined, in which the definitions, axioms, and postulates of Euclid respecting parallel straight lines are assumed to hold true.

Having the main artery of the leg parallel with the sciatic nerve; -- said of certain birds.

A plane parallel to the sensible horizon of a place, and passing through the earth's center; -- called also rational or celestial horizon.

Parallel to the horizon; on a level; as, a horizontalline or surface.

or into spaces of 15º, or one hour, each. (b) A circle upon an equatorial telescope lying parallel to the plane of the earth's equator, and graduated in hours and subdivisions of hours of right ascension. (c) A small brass circle attached to the north pole of an artificial globe, and divided into twenty-four parts or h…

e at the point of contact. The curve is similar to the intersection of the surface with a parallel to the tangent plane and indefinitely near it. It is an ellipse when the curvature is synclastic, and an hyperbola when the curvature is anticlastic.

t of a line, or of a plane, or of space, which is infinitely distant. In modern geometry, parallel lines or planes are sometimes treated as lines or planes meeting at infinity. Circle at infinity, an imaginary circle at infinity, through which, in geometry of three dimensions, every sphere is imagined to pass. -- Circ…

gle formed between two sides, within any rectilinear figure, as a polygon, or between two parallel lines by these lines and another intersecting them; -- called also internal angle. -- Interior planets (Astron.), those planets within the orbit of the earth. -- Interior screw, a screw cut on an interior surface, as in…

Having a mutual or reciprocal relation or parallelism; correlative.

ojection is used. It is so named from the fact that the projections of three equal lines, parallel respectively to three rectangular axes, are equal to one another. This kind of projection is principally used in delineating buildings or machinery, in which the principal lines are parallel to three rectangular axes, and…

of Lay. Laid paper, paper marked with parallel lines or water marks, as if ribbed, from parallel wires in the mold. It is called blue laid, cream laid, etc., according to its color.

cted to the side; as, a lateral view of a thing. Lateral cleavage (Crystallog.), cleavage parallel to the lateral planes. -- Lateral equation (Math.), an equation of the first degree. [Obs.] -- Lateral line (Anat.), in fishes, a line of sensory organs along either side of the body, often marked by a distinct line of c…

The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis. See Focus, and Parameter.

; extent of anything from end to end; the longest line which can be drawn through a body, parallel to its sides; as, the length of a church, or of a ship; the length of a rope or line.

y point, a vertical or plumb line is perpendicular; a line or surface which is everywhere parallel to the surface of still water; -- this is the true level, and is a curve or surface in which all points are equally distant from the center of the earth, or rather would be so if the earth were an exact sphere.…

Mech.), the perpendicular distance between the lines of action of two forces which act in parallel and opposite directions. -- Leverage of a force, the perpendicular distance from the line in which a force acts upon a body to a point about which the body may be supposed to turn.

money; to limit one's ambitions or aspirations; to limit the meaning of a word. Limiting parallels (Astron.), those parallels of latitude between which only an occultation of a star or planet by the moon, in a given case, can occur.

One of the straight horizontal and parallel prolonged strokes on and between which the notes are placed.