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2 definitions found
 for Ball bearings
From The Collaborative International Dictionary of English v.0.48 :

  Ball \Ball\ (b[add]l), n. [OE. bal, balle; akin to OHG. balla,
     palla, G. ball, Icel. b["o]llr, ball; cf. F. balle. Cf. 1st
     Bale, n., Pallmall.]
     1. Any round or roundish body or mass; a sphere or globe; as,
        a ball of twine; a ball of snow.
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     2. A spherical body of any substance or size used to play
        with, as by throwing, knocking, kicking, etc.
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     3. A general name for games in which a ball is thrown,
        kicked, or knocked. See Baseball, and Football.
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     4. Any solid spherical, cylindrical, or conical projectile of
        lead or iron, to be discharged from a firearm; as, a
        cannon ball; a rifle ball; -- often used collectively; as,
        powder and ball. Spherical balls for the smaller firearms
        are commonly called bullets.
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     5. (Pyrotechnics & Mil.) A flaming, roundish body shot into
        the air; a case filled with combustibles intended to burst
        and give light or set fire, or to produce smoke or stench;
        as, a fire ball; a stink ball.
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     6. (Print.) A leather-covered cushion, fastened to a handle
        called a ballstock; -- formerly used by printers for
        inking the form, but now superseded by the roller.
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     7. A roundish protuberant portion of some part of the body;
        as, the ball of the thumb; the ball of the foot.
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     8. (Far.) A large pill, a form in which medicine is commonly
        given to horses; a bolus. --White.
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     9. The globe or earth. --Pope.
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              Move round the dark terrestrial ball. --Addison.
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     10. (Baseball) A pitched ball, not struck at by the batter,
         which fails to pass over the home plate at a height not
         greater than the batter's shoulder nor less than his knee
         (i.e. it is outside the strike zone). If the pitcher
         pitches four balls before three strikes are called, the
         batter advances to first base, and the action of pitching
         four balls is called a walk.
         [Webster 1913 Suppl. +PJC]
     10. a testicle; usually used in the plural. [vulgar]
     11. pl. courage; nerve. [vulgar]
     Ball and socket joint, a joint in which a ball moves within
        a socket, so as to admit of motion in every direction
        within certain limits.
     Ball bearings, a mechanical device for lessening the
        friction of axle bearings by means of small loose metal
     Ball cartridge, a cartridge containing a ball, as
        distinguished from a blank cartridge, containing only
     Ball cock, a faucet or valve which is opened or closed by
        the fall or rise of a ball floating in water at the end of
        a lever.
     Ball gudgeon, a pivot of a spherical form, which permits
        lateral deflection of the arbor or shaft, while retaining
        the pivot in its socket. --Knight.
     Ball lever, the lever used in a ball cock.
     Ball of the eye, the eye itself, as distinguished from its
        lids and socket; -- formerly, the pupil of the eye.
     Ball valve (Mach.), a contrivance by which a ball, placed
        in a circular cup with a hole in its bottom, operates as a
     Ball vein (Mining), a sort of iron ore, found in loose
        masses of a globular form, containing sparkling particles.
     Three balls, or Three golden balls, a pawnbroker's sign
        or shop.
     on the ball alert; competent and knowledgeable.
     to carry the ball to carry on the task; to assume the
     to drop the ball to fail to perform as expected; to fail to
        live up to a responsibility.
        [1913 Webster]
     Syn: See Globe.
          [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Bearing \Bear"ing\ (b[^a]r"[i^]ng), n.
     1. The manner in which one bears or conducts one's self;
        mien; behavior; carriage.
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              I know him by his bearing.            --Shak.
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     2. Patient endurance; suffering without complaint.
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     3. The situation of one object, with respect to another, such
        situation being supposed to have a connection with the
        object, or influence upon it, or to be influenced by it;
        hence, relation; connection.
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              But of this frame, the bearings and the ties,
              The strong connections, nice dependencies. --Pope.
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     4. Purport; meaning; intended significance; aspect.
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     5. The act, power, or time of producing or giving birth; as,
        a tree in full bearing; a tree past bearing.
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              [His mother] in travail of his bearing. --R. of
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     6. (Arch.)
        (a) That part of any member of a building which rests upon
            its supports; as, a lintel or beam may have four
            inches of bearing upon the wall.
        (b) The portion of a support on which anything rests.
        (c) Improperly, the unsupported span; as, the beam has
            twenty feet of bearing between its supports.
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     7. (Mach.)
        (a) The part of an axle or shaft in contact with its
            support, collar, or boxing; the journal.
        (b) The part of the support on which a journal rests and
            [1913 Webster]
     8. (Her.) Any single emblem or charge in an escutcheon or
        coat of arms -- commonly in the pl.
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              A carriage covered with armorial bearings.
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     9. (Naut.)
        (a) The situation of a distant object, with regard to a
            ship's position, as on the bow, on the lee quarter,
            etc.; the direction or point of the compass in which
            an object is seen; as, the bearing of the cape was W.
            N. W.
        (b) pl. The widest part of a vessel below the plank-sheer.
        (c) pl. The line of flotation of a vessel when properly
            trimmed with cargo or ballast.
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     Ball bearings. See under Ball.
     To bring one to his bearings, to bring one to his senses.
     To lose one's bearings, to become bewildered.
     To take bearings, to ascertain by the compass the position
        of an object; to ascertain the relation of one object or
        place to another; to ascertain one's position by reference
        to landmarks or to the compass; hence (Fig.), to ascertain
        the condition of things when one is in trouble or
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     Syn: Deportment; gesture; mien; behavior; manner; carriage;
          demeanor; port; conduct; direction; relation; tendency;
          [1913 Webster]

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