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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

16 words match “RIGHT-ANGLED”

RIGHT-ANGLED a.
Containing a right angle or right angles; as, a right-angled triangle.
CATHETUS n.
One line or radius falling perpendicularly on another; as, the catheti of a right-angled triangle, that is, the two sides that include the right angle. Barlow.
HYPOTENUSE; HYPOTHENUSE n.
The side of a right-angled triangle that is opposite to the right angle.
L n.
A short right-angled pipe fitting, used in connecting two pipes at right angles. [Written also ell.]
LEG n.
es is first distinguished by some appropriate term; as, the hypothenuse and two legs of a right-angled triangle. On one's legs, standing to speak. -- One's last legs. See under Last. -- To have legs (Naut.), to have speed. -- To stand on one's own legs, to support one's self; to be independent.
LINCH n.
A ledge; a right-angled projection.
ORTHOGONAL a.
Right-angled; rectangular; as, an orthogonal intersection of one curve with another. Orthogonal projection. See under Orthographic.
PILASTER n.
An upright architectural member right-angled in plan, constructionally a pier (See Pier, 1 (b)), but architecturally corresponding to a column, having capital, shaft, and base to agree with those of the columns of the same order. In most cases the projection from the wall is one third of its width, or less.…
PYTHAGOREAN a.
roposition (Geom.), the theorem that the square described upon the hypothenuse of a plane right-angled triangle is equal to the sum of the squares described upon the other two sides. -- Pythagorean system (Astron.), the commonly received system of astronomy, first taught by Pythagoras, and afterward revived by Coperni…
RECTANGLE n.
A four-sided figure having only right angles; a right-angled parallelogram.
RECTANGULAR a.
Right-angled; having one or more angles of ninety degrees. -- Rec*tan"gu*lar*ly (r, adv. -- Rec*tan"gu*lar*ness, n.
RECTANGULARITY n.
The quality or condition of being rectangular, or right-angled.
REVOLUTION n.
on), and a moving surface a solid (called a solid of revolution); as, the revolution of a right-angled triangle about one of its sides generates a cone; the revolution of a semicircle about the diameter generates a sphere.
SINE n.
gle, in a circle whose radius is unity, the sine of the arc that measures the angle; in a right-angled triangle, the side opposite the given angle divided by the hypotenuse. See Trigonometrical function, under Function. -- Versed sine, that part of the diameter between the sine and the arc.
TRAVERSE n.
se and distance may be found by inspection. It contains the lengths of the two sides of a right-angled triangle, usually for every quarter of a degree of angle, and for lengths of the hypothenuse, from 1 to 100. (b) (Railroad) A platform with one or more tracks, and arranged to move laterally on wheels, for shifting ca…
TRIANGLE n.
A draughtsman's square in the form of a right-angled triangle.