At half cock

from The Collaborative International Dictionary of English v.0.48
Half \Half\ (h[aum]f), a. [AS. healf, half, half; as a noun,
   half, side, part; akin to OS., OFries., & D. half, G. halb,
   Sw. half, Dan. halv, Icel. h[=a]lfr, Goth. halbs. Cf.
   {Halve}, {Behalf}.]
   1. Consisting of a moiety, or half; as, a half bushel; a half
      hour; a half dollar; a half view.
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   Note: The adjective and noun are often united to form a
         compound.
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   2. Consisting of some indefinite portion resembling a half;
      approximately a half, whether more or less; partial;
      imperfect; as, a half dream; half knowledge.
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            Assumed from thence a half consent.   --Tennyson.
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   {Half ape} (Zool.), a lemur.

   {Half back}. (Football) See under 2d {Back}.

   {Half bent}, the first notch, for the sear point to enter, in
      the tumbler of a gunlock; the halfcock notch.

   {Half binding}, a style of bookbinding in which only the back
      and corners are in leather.

   {Half boarder}, one who boards in part; specifically, a
      scholar at a boarding school who takes dinner only.

   {Half-breadth plan} (Shipbuilding), a horizontal plan of one
      half a vessel, divided lengthwise, showing the lines.

   {Half cadence} (Mus.), a cadence on the dominant.

   {Half cap}, a slight salute with the cap. [Obs.] --Shak.

   {At half cock}, the position of the cock of a gun when
      retained by the first notch.

   {Half hitch}, a sailor's knot in a rope; half of a clove
      hitch.

   {Half hose}, short stockings; socks.

   {Half measure}, an imperfect or weak line of action.

   {Half note} (Mus.), a minim, one half of a semibreve.

   {Half pay}, half of the wages or salary; reduced pay; as, an
      officer on half pay.

   {Half price}, half the ordinary price; or a price much
      reduced.

   {Half round}.
      (a) (Arch.) A molding of semicircular section.
      (b) (Mech.) Having one side flat and the other rounded; --
          said of a file.

   {Half shift} (Mus.), a position of the hand, between the open
      position and the first shift, in playing on the violin and
      kindred instruments. See {Shift}.

   {Half step} (Mus.), a semitone; the smallest difference of
      pitch or interval, used in music.

   {Half tide}, the time or state of the tide equally distant
      from ebb and flood.

   {Half time}, half the ordinary time for work or attendance;
      as, the half-time system.

   {Half tint} (Fine Arts), a middle or intermediate tint, as in
      drawing or painting. See {Demitint}.

   {Half truth}, a statement only partially true, or which gives
      only a part of the truth. --Mrs. Browning.

   {Half year}, the space of six months; one term of a school
      when there are two terms in a year.
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from The Collaborative International Dictionary of English v.0.48
Cock \Cock\, n. [It. cocca notch of an arrow.]
   1. The notch of an arrow or crossbow.
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   2. The hammer in the lock of a firearm.
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   {At cock}, {At full cock}, with the hammer raised and ready
      to fire; -- said of firearms, also, jocularly, of one
      prepared for instant action.

   {At half cock}. See under {Half}.

   {Cock feather} (Archery), the feather of an arrow at right
      angles to the direction of the cock or notch. --Nares.
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