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moment of inertia
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English Dictionary: moment of inertia by the DICT Development Group
2 results for moment of inertia
From WordNet (r) 3.0 (2006) [wn]:
moment of inertia
  1. the tendency of a body to resist angular acceleration
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Moment \Mo"ment\, n. [F. moment, L. momentum, for movimentum
      movement, motion, moment, fr. movere to move. See {Move}, and
      cf. {Momentum}, {Movement}.]
      1. A minute portion of time; a point of time; an instant; as,
            at thet very moment.
                     In a moment, in the twinkling of an eye. --1 Cor.
                                                                              xv. 52.
      2. Impulsive power; force; momentum.
                     The moments or quantities of motion in bodies.
                     Touch, with lightest moment of impulse, His free
                     will.                                                --Milton.
      3. Importance, as in influence or effect; consequence; weight
            or value; consideration.
                     Matters of great moment.                     --Shak.
                     It is an abstruse speculation, but also of far less
                     moment and consequence of us than the others.
      4. An essential element; a deciding point, fact, or
            consideration; an essential or influential circumstance.
      5. (Math.) An infinitesimal change in a varying quantity; an
            increment or decrement. [Obs.]
      6. (Mech.) Tendency, or measure of tendency, to produce
            motion, esp. motion about a fixed point or axis.
      {Moment of a couple} (Mech.), the product of either of its
            forces into the perpendicular distance between them.
      {Moment of a force}. (Mech.)
            (a) With respect to a point, the product of the intensity
                  of the force into the perpendicular distance from the
                  point to the line of direction of the force.
            (b) With respect to a line, the product of that component
                  of the force which is perpendicular to the plane
                  passing through the line and the point of application
                  of the force, into the shortest distance between the
                  line and this point.
            (c) With respect to a plane that is parallel to the force,
                  the product of the force into the perpendicular
                  distance of its point of application from the plane.
      {Moment of inertia}, of a rotating body, the sum of the mass
            of each particle of matter of the body into the square of
            its distance from the axis of rotation; -- called also
            {moment of rotation} and {moment of the mass}.
      {Statical moment}, the product of a force into its leverage;
            the same as {moment of a force} with respect to a point,
            line, etc.
      {Virtual moment}. See under {Virtual}.
      Syn: Instant; twinkling; consequence; weight; force; value;
               consideration; signification; avail.
No guarantee of accuracy or completeness!
©TU Chemnitz, 2006-2021
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