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described by a moving right line, and such that consecutive positions of the generator intersect each other. Hence, the surface can be developed into a plane.

A curved formed by the consecutive intersections of rays of light refracted through a lens.

sts of a set of parallel lines, with other lines crossing them obliquely, so that their intersections furnish smaller subdivisions of the unit of measure than could be conveniently marked on a plain scale. -- Diagonal stratification. (Geol.) Same as Cross bedding, under Cross, a.

Meeting and intersecting, as lines; not parallel; -- opposed to parallel. [Obs.] Ash.

Having two of the intersections between the three axes oblique. See Crystallization.

out; widely spread; not restrained; copious; full; esp., of style, opposed to concise or terse; verbose; prolix; as, a diffuse style; a diffuse writer. A diffuse and various knowledge of divine and human things. Milton.

l summit of a crystal. Dihedral angle, the angular space contained between planes which intersect. It is measured by the angle made by any two lines at right angles to the two planes.

Not continuous; interrupted; broken off. A path that is zigzag, discontinuous, and intersected at every turn by human negligence. De Quincey.

The tissue which partially fills the interior of the interseptal chambers of most madreporarian corals. It usually consists of a series of oblique tranverse septa, one above another. -- En`do*the"cal, a.

An effusion of wit; a bright thought tersely and sharply expressed, whether in verse or prose.

Milton. - Equinoctial points (Astron.), the two points where the celestial and ecliptic intersect each other; the one being in the first point of Aries, the other in the first point of Libra. -- Equinoctial time (Astron.) reckoned in any year from the instant when the mean sun is at the mean vernal equinoctial point.…

A method of forming a joint at the intersection of window-sash bars, by cutting away only enough wood to show a miter.

An ornament consisting of smmall fillets or slats intersecting each other or bent at right angles, as in classical designs, or at obilique angles, as often in Oriental art. His lady's cabinet is a adorned on the fret, ceiling, and chimney- piece with . . . carving. Evelyn.

. See Trailing arbutus, under Arbutus. -- Ground line (Descriptive Geom.), the line of intersection of the horizontal and vertical planes of projection. -- Ground liverwort (Bot.), a flowerless plant with a broad flat forking thallus and the fruit raised on peduncled and radiated receptacles (Marchantia polymorpha).…

A horizontal dislocation in a metallic lode, taking place at an intersection with another lode.

A figure composed of two equal triangles intersecting so that each side of one triangle is parallel to a side of the other, and the six points coincide with those of a hexagon.

thigh bone and hip bone. -- Hip knob (Arch.), a finial, ball, or other ornament at the intersection of the hip rafters and the ridge. -- Hip molding (Arch.), a molding on the hip of a roof, covering the hip joint of the slating or other roofing. -- Hip rafter (Arch.), the rafter extending from the wall plate to the…

ndicating the hour. (b) (Dialing) A line on which the shadow falls at a given hour; the intersection of an hour circle which the face of the dial. -- Hour plate, the plate of a timepiece on which the hours are marked; the dial. Locke. -- Sidereal hour, the twenty-fourth part of a sidereal day. -- Solar hour, the twe…

A twelfth part of the heavens, as divided by six circles intersecting at the north and south points of the horizon, used by astrologers in noting the positions of the heavenly bodies, and casting horoscopes or nativities. The houses were regarded as fixed in respect to the horizon, and numbered from the one at the east…

idents of curvature of the surface 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.