Definition of Center of a. Meaning of Center of a. Synonyms of Center of a
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Definition of Center of a
Center of aCenter Cen"ter, n. [F. centre, fr. L. centrum, fr. round which
a circle is described, fr. ? to prick, goad.]
1. A point equally distant from the extremities of a line,
figure, or body, or from all parts of the circumference of
a circle; the middle point or place.
2. The middle or central portion of anything.
3. A principal or important point of concentration; the
nucleus around which things are gathered or to which they
tend; an object of attention, action, or force; as, a
center of attaction.
4. The earth. [Obs.] --Shak.
5. Those members of a legislative assembly (as in France) who
support the existing government. They sit in the middle of
the legislative chamber, opposite the presiding officer,
between the conservatives or monarchists, who sit on the
right of the speaker, and the radicals or advanced
republicans who occupy the seats on his left, See Right,
6. (Arch.) A temporary structure upon which the materials of
a vault or arch are supported in position until the work
(a) One of the two conical steel pins, in a lathe, etc.,
upon which the work is held, and about which it
(b) A conical recess, or indentation, in the end of a
shaft or other work, to receive the point of a center,
on which the work can turn, as in a lathe.
Note: In a lathe the
live center is in the spindle of the head stock; the
dead center is on the tail stock.
Planer centers are stocks carrying centers, when the object
to be planed must be turned on its axis.
Center of an army, the body or troops occupying the place
in the line between the wings.
Center of a curve or surface (Geom.)
(a) A point such that every line drawn through the point
and terminated by the curve or surface is bisected at
(b) The fixed point of reference in polar co["o]rdinates.
Center of curvature of a curve (Geom.), the center of that
circle which has at any given point of the curve closer
contact with the curve than has any other circle whatever.
Center of a fleet, the division or column between the van
and rear, or between the weather division and the lee.
Center of gravity (Mech.), that point of a body about which
all its parts can be balanced, or which being supported,
the whole body will remain at rest, though acted upon by
Center of gyration (Mech.), that point in a rotating body
at which the whole mass might be concentrated
(theoretically) without altering the resistance of the
intertia of the body to angular acceleration or
Center of inertia (Mech.), the center of gravity of a body
or system of bodies.
Center of motion, the point which remains at rest, while
all the other parts of a body move round it.
Center of oscillation, the point at which, if the whole
matter of a suspended body were collected, the time of
oscillation would be the same as it is in the actual form
and state of the body.
Center of percussion, that point in a body moving about a
fixed axis at which it may strike an obstacle without
communicating a shock to the axis.
Center of pressure (Hydros.), that point in a surface
pressed by a fluid, at which, if a force equal to the
whole pressure and in the same line be applied in a
contrary direction, it will balance or counteract the
whole pressure of the fluid.
Meaning of Center of a from wikipedia
(geometry), the middle of
an object Center
(algebra), used in various contexts Graph center
, the set of
structures, ultimately leading
to the collapse of
7 World Trade Center
at 5:21 p.m. A total of
in the crashes, fires, and...
- Sagittarius A
* (pronounced "Sagittarius A
*) is a bright
and very compact astronomical radio source
at the Galactic Center of
- the center of a
group, G, is the set of elements
with every element of
G. It is denoted
Z(G), from German
Zentrum, meaning center
. In set-builder...
- The original World Trade Center
was a large complex of seven buildings
in the Financial District of Lower
Manhattan, New York City, United
States. It opened...
- president of
. In October
14-year veteran of
the Pew Research Center
, was named
president. The Pew Research Center
- In physics, the center of
m**** of a distribution of
m**** in space
to as the balance
point) is the unique point where
- the Center of
de la Terre), also translated
with the variant titles A Journey
to the Centre of
- The center of percussion
is the point
on an extended
m****ive object attached
to a pivot where a perpendicular impact
no reactive shock
- One World Trade Center
as One World
Trade, One WTC, or Freedom
Tower) is the main building of
the rebuilt World Trade Center complex
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