Blind \Blind\, a. [AS.; akin to D., G., OS., Sw., & Dan. blind,
   Icel. blindr, Goth. blinds; of uncertain origin.]
   1. Destitute of the sense of seeing, either by natural defect
      or by deprivation; without sight.
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            He that is strucken blind can not forget
            The precious treasure of his eyesight lost. --Shak.
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   2. Not having the faculty of discernment; destitute of
      intellectual light; unable or unwilling to understand or
      judge; as, authors are blind to their own defects.
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            But hard be hardened, blind be blinded more,
            That they may stumble on, and deeper fall. --Milton.
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   3. Undiscerning; undiscriminating; inconsiderate.
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            This plan is recommended neither to blind
            approbation nor to blind reprobation. --Jay.
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   4. Having such a state or condition as a thing would have to
      a person who is blind; not well marked or easily
      discernible; hidden; unseen; concealed; as, a blind path;
      a blind ditch.
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   5. Involved; intricate; not easily followed or traced.
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            The blind mazes of this tangled wood. --Milton.
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   6. Having no openings for light or passage; as, a blind wall;
      open only at one end; as, a blind alley; a blind gut.
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   7. Unintelligible, or not easily intelligible; as, a blind
      passage in a book; illegible; as, blind writing.
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   8. (Hort.) Abortive; failing to produce flowers or fruit; as,
      blind buds; blind flowers.
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   Blind alley, an alley closed at one end; a cul-de-sac.

   Blind axle, an axle which turns but does not communicate
      motion. --Knight.

   Blind beetle, one of the insects apt to fly against people,
      esp. at night.

   Blind cat (Zool.), a species of catfish (Gronias
      nigrolabris), nearly destitute of eyes, living in caverns
      in Pennsylvania.

   Blind coal, coal that burns without flame; anthracite coal.
      --Simmonds.

   Blind door, Blind window, an imitation of a door or
      window, without an opening for passage or light. See
      Blank door or Blank window, under Blank, a.

   Blind level (Mining), a level or drainage gallery which has
      a vertical shaft at each end, and acts as an inverted
      siphon. --Knight.

   Blind nettle (Bot.), dead nettle. See Dead nettle, under
      Dead.

   Blind shell (Gunnery), a shell containing no charge, or one
      that does not explode.

   Blind side, the side which is most easily assailed; a weak
      or unguarded side; the side on which one is least able or
      disposed to see danger. --Swift.

   Blind snake (Zool.), a small, harmless, burrowing snake, of
      the family Typhlopid[ae], with rudimentary eyes.

   Blind spot (Anat.), the point in the retina of the eye
      where the optic nerve enters, and which is insensible to
      light.

   Blind tooling, in bookbinding and leather work, the
      indented impression of heated tools, without gilding; --
      called also blank tooling, and blind blocking.

   Blind wall, a wall without an opening; a blank wall.
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Door \Door\, n. [OE. dore, dure, AS. duru; akin to OS. dura,
   dor, D. deur, OHG. turi, door, tor gate, G. th["u]r, thor,
   Icel. dyrr, Dan. d["o]r, Sw. d["o]rr, Goth. daur, Lith.
   durys, Russ. dvere, Olr. dorus, L. fores, Gr. ?; cf. Skr.
   dur, dv[=a]ra. [root]246. Cf. Foreign.]
   1. An opening in the wall of a house or of an apartment, by
      which to go in and out; an entrance way.
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            To the same end, men several paths may tread,
            As many doors into one temple lead.   --Denham.
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   2. The frame or barrier of boards, or other material, usually
      turning on hinges, by which an entrance way into a house
      or apartment is closed and opened.
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            At last he came unto an iron door
            That fast was locked.                 --Spenser.
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   3. Passage; means of approach or access.
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            I am the door; by me if any man enter in, he shall
            be saved.                             --John x. 9.
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   4. An entrance way, but taken in the sense of the house or
      apartment to which it leads.
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            Martin's office is now the second door in the
            street.                               --Arbuthnot.
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   Blank door, Blind door, etc. (Arch.) See under Blank,
      Blind, etc.

   In doors, or Within doors, within the house.

   Next door to, near to; bordering on.
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            A riot unpunished is but next door to a tumult.
                                                  --L'Estrange.
      

   Out of doors, or Without doors, and, [colloquially], Out
   doors, out of the house; in open air; abroad; away; lost.
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            His imaginary title of fatherhood is out of doors.
                                                  --Locke.

   To lay (a fault, misfortune, etc.) at one's door, to charge
      one with a fault; to blame for.

   To lie at one's door, to be imputable or chargeable to.
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            If I have failed, the fault lies wholly at my door.
                                                  --Dryden.
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   Note: Door is used in an adjectival construction or as the
         first part of a compound (with or without the hyphen),
         as, door frame, doorbell or door bell, door knob or
         doorknob, door latch or doorlatch, door jamb, door
         handle, door mat, door panel.
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