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Right pyramid
(gcide) | Pyramid \Pyr"a*mid\, n. [L. pyramis, -idis, fr. Gr. ?, ?, of
Egyptian origin: cf. F. pyramide.]
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1. A solid body standing on a triangular, square, or
polygonal base, and terminating in a point at the top;
especially, a structure or edifice of this shape.
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2. (Geom.) A solid figure contained by a plane rectilineal
figure as base and several triangles which have a common
vertex and whose bases are sides of the base.
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3. pl. (Billiards) The game of pool in which the balls are
placed in the form of a triangle at spot. [Eng.]
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4. (Finance) a fraudulent investment scheme in which the
manager promises high profits, but instead of investing
the money in a genuine profit-making activity, uses the
money from later investors to pay the profits to earlier
investors; -- also called pyramid scheme or {pyramid
operation}. This process inevitably collapses when
insufficient new investors are available, leaving the
later investors with total or near-total losses of their
investments. The managers usually blame government
regulations or interference for the collapse of the
scheme, rather than admit fraud.
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Altitude of a pyramid (Geom.), the perpendicular distance
from the vertex to the plane of the base.
Axis of a pyramid (Geom.), a straight line drawn from the
vertex to the center of the base.
Earth pyramid. (Geol.) See Earth pillars, under Earth.
Right pyramid (Geom.) a pyramid whose axis is perpendicular
to the base.
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Right pyramid
(gcide) | Right \Right\ (r[imac]t), a. [OE. right, riht, AS. riht; akin to
D. regt, OS. & OHG. reht, G. recht, Dan. ret, Sw. r[aum]tt,
Icel. rettr, Goth. ra['i]hts, L. rectus, p. p. of regere to
guide, rule; cf. Skr. [.r]ju straight, right. [root]115. Cf.
Adroit,Alert, Correct, Dress, Regular, Rector,
Recto, Rectum, Regent, Region, Realm, Rich,
Royal, Rule.]
1. Straight; direct; not crooked; as, a right line. "Right as
any line." --Chaucer
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2. Upright; erect from a base; having an upright axis; not
oblique; as, right ascension; a right pyramid or cone.
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3. Conformed to the constitution of man and the will of God,
or to justice and equity; not deviating from the true and
just; according with truth and duty; just; true.
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That which is conformable to the Supreme Rule is
absolutely right, and is called right simply without
relation to a special end. --Whately.
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2. Fit; suitable; proper; correct; becoming; as, the right
man in the right place; the right way from London to
Oxford.
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5. Characterized by reality or genuineness; real; actual; not
spurious. "His right wife." --Chaucer.
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In this battle, . . . the Britons never more plainly
manifested themselves to be right barbarians.
--Milton.
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6. According with truth; passing a true judgment; conforming
to fact or intent; not mistaken or wrong; not erroneous;
correct; as, this is the right faith.
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You are right, Justice, and you weigh this well.
--Shak.
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If there be no prospect beyond the grave, the
inference is . . . right, "Let us eat and drink, for
to-morrow we die." --Locke.
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7. Most favorable or convenient; fortunate.
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The lady has been disappointed on the right side.
--Spectator.
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8. Of or pertaining to that side of the body in man on which
the muscular action is usually stronger than on the other
side; -- opposed to left when used in reference to a part
of the body; as, the right side, hand, arm. Also applied
to the corresponding side of the lower animals.
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Became the sovereign's favorite, his right hand.
--Longfellow.
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Note: In designating the banks of a river, right and left are
used always with reference to the position of one who
is facing in the direction of the current's flow.
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9. Well placed, disposed, or adjusted; orderly; well
regulated; correctly done.
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10. Designed to be placed or worn outward; as, the right side
of a piece of cloth.
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At right angles, so as to form a right angle or right
angles, as when one line crosses another perpendicularly.
Right and left, in both or all directions. [Colloq.]
Right and left coupling (Pipe fitting), a coupling the
opposite ends of which are tapped for a right-handed screw
and a left-handed screw, respectivelly.
Right angle.
(a) The angle formed by one line meeting another
perpendicularly, as the angles ABD, DBC.
(b) (Spherics) A spherical angle included between the
axes of two great circles whose planes are
perpendicular to each other.
Right ascension. See under Ascension.
Right Center (Politics), those members belonging to the
Center in a legislative assembly who have sympathies with
the Right on political questions. See Center, n., 5.
Right cone, Right cylinder, Right prism, {Right
pyramid} (Geom.), a cone, cylinder, prism, or pyramid, the
axis of which is perpendicular to the base.
Right line. See under Line.
Right sailing (Naut.), sailing on one of the four cardinal
points, so as to alter a ship's latitude or its longitude,
but not both. --Ham. Nav. Encyc.
Right sphere (Astron. & Geol.), a sphere in such a position
that the equator cuts the horizon at right angles; in
spherical projections, that position of the sphere in
which the primitive plane coincides with the plane of the
equator.
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Note: Right is used elliptically for it is right, what you
say is right, true.
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"Right," cries his lordship. --Pope.
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Syn: Straight; direct; perpendicular; upright; lawful;
rightful; true; correct; just; equitable; proper;
suitable; becoming.
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