Sail \Sail\, n. [OE. seil, AS. segel, segl; akin to D. zeil,
   OHG. segal, G. & Sw. segel, Icel. segl, Dan. seil. [root]
   153.]
   1. An extent of canvas or other fabric by means of which the
      wind is made serviceable as a power for propelling vessels
      through the water.
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            Behoves him now both sail and oar.    --Milton.
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   2. Anything resembling a sail, or regarded as a sail.
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   3. A wing; a van. [Poetic]
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            Like an eagle soaring
            To weather his broad sails.           --Spenser.
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   4. The extended surface of the arm of a windmill.
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   5. A sailing vessel; a vessel of any kind; a craft.
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   Note: In this sense, the plural has usually the same form as
         the singular; as, twenty sail were in sight.
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   6. A passage by a sailing vessel; a journey or excursion upon
      the water.
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   Note: Sails are of two general kinds, fore-and-aft sails,
         and square sails. Square sails are always bent to
         yards, with their foot lying across the line of the
         vessel. Fore-and-aft sails are set upon stays or gaffs
         with their foot in line with the keel. A fore-and-aft
         sail is triangular, or quadrilateral with the after
         leech longer than the fore leech. Square sails are
         quadrilateral, but not necessarily square. See Phrases
         under Fore, a., and Square, a.; also, Bark,
         Brig, Schooner, Ship, Stay.
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   Sail burton (Naut.), a purchase for hoisting sails aloft
      for bending.

   Sail fluke (Zool.), the whiff.

   Sail hook, a small hook used in making sails, to hold the
      seams square.

   Sail loft, a loft or room where sails are cut out and made.
      

   Sail room (Naut.), a room in a vessel where sails are
      stowed when not in use.

   Sail yard (Naut.), the yard or spar on which a sail is
      extended.

   Shoulder-of-mutton sail (Naut.), a triangular sail of
      peculiar form. It is chiefly used to set on a boat's mast.
      

   To crowd sail. (Naut.) See under Crowd.

   To loose sails (Naut.), to unfurl or spread sails.

   To make sail (Naut.), to extend an additional quantity of
      sail.

   To set a sail (Naut.), to extend or spread a sail to the
      wind.

   To set sail (Naut.), to unfurl or spread the sails; hence,
      to begin a voyage.

   To shorten sail (Naut.), to reduce the extent of sail, or
      take in a part.

   To strike sail (Naut.), to lower the sails suddenly, as in
      saluting, or in sudden gusts of wind; hence, to
      acknowledge inferiority; to abate pretension.

   Under sail, having the sails spread.
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Shoulder \Shoul"der\, n. [OE. shulder, shuldre, schutder, AS.
   sculdor; akin to D. schoulder, G. schulter, OHG. scultarra,
   Dan. skulder, Sw. skuldra.]
   1. (Anat.) The joint, or the region of the joint, by which
      the fore limb is connected with the body or with the
      shoulder girdle; the projection formed by the bones and
      muscles about that joint.
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   2. The flesh and muscles connected with the shoulder joint;
      the upper part of the back; that part of the human frame
      on which it is most easy to carry a heavy burden; -- often
      used in the plural.
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            Then by main force pulled up, and on his shoulders
            bore
            The gates of Azza.                    --Milton.
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            Adown her shoulders fell her length of hair.
                                                  --Dryden.
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   3. Fig.: That which supports or sustains; support.
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            In thy shoulder do I build my seat.   --Shak.
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   4. That which resembles a human shoulder, as any protuberance
      or projection from the body of a thing.
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            The north western shoulder of the mountain. --Sir W.
                                                  Scott.
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   5. The upper joint of the fore leg and adjacent parts of an
      animal, dressed for market; as, a shoulder of mutton.
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   6. (Fort.) The angle of a bastion included between the face
      and flank. See Illust. of Bastion.
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   7. An abrupt projection which forms an abutment on an object,
      or limits motion, etc., as the projection around a tenon
      at the end of a piece of timber, the part of the top of a
      type which projects beyond the base of the raised
      character, etc.
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   Shoulder belt, a belt that passes across the shoulder.

   Shoulder blade (Anat.), the flat bone of the shoulder, to
      which the humerus is articulated; the scapula.

   Shoulder block (Naut.), a block with a projection, or
      shoulder, near the upper end, so that it can rest against
      a spar without jamming the rope.

   Shoulder clapper, one who claps another on the shoulder, or
      who uses great familiarity. [Obs.] --Shak.

   Shoulder girdle. (Anat.) See Pectoral girdle, under
      Pectoral.

   Shoulder knot, an ornamental knot of ribbon or lace worn on
      the shoulder; a kind of epaulet or braided ornament worn
      as part of a military uniform.

   Shoulder-of-mutton sail (Naut.), a triangular sail carried
      on a boat's mast; -- so called from its shape.

   Shoulder slip, dislocation of the shoulder, or of the
      humerous. --Swift.

   Shoulder strap, a strap worn on or over the shoulder.
      Specifically (Mil. & Naval), a narrow strap worn on the
      shoulder of a commissioned officer, indicating, by a
      suitable device, the rank he holds in the service. See
      Illust. in App.
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