Blind a.
 1. Destitute of the sense of seeing, either by natural defect or by deprivation; without sight.
 He that is strucken blind can not forget
 The precious treasure of his eyesight lost.   --Shak.
 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.
 But hard be hardened, blind be blinded more,
 That they may stumble on, and deeper fall.   --Milton.
 3. Undiscerning; undiscriminating; inconsiderate.
    This plan is recommended neither to blind approbation nor to blind reprobation.   --Jay.
 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.
 5. Involved; intricate; not easily followed or traced.
    The blind mazes of this tangled wood.   --Milton.
 6. Having no openings for light or passage; as, a blind wall; open only at one end; as, a blind alley; a blind gut.
 7. Unintelligible, or not easily intelligible; as, a blind passage in a book; illegible; as, blind writing.
 8. Hort. Abortive; failing to produce flowers or fruit; as, blind buds; blind flowers.
 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 Typhlopidæ, 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.


 Door n.
 1. An opening in the wall of a house or of an apartment, by which to go in and out; an entrance way.
 To the same end, men several paths may tread,
 As many doors into one temple lead.   --Denham.
 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.
 At last he came unto an iron door
 That fast was locked.   --Spenser.
 3. Passage; means of approach or access.
    I am the door; by me if any man enter in, he shall be saved.   --John x. 9.
 4. An entrance way, but taken in the sense of the house or apartment to which it leads.
    Martin's office is now the second door in the street.   --Arbuthnot.
 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.
    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.
    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.
    If I have failed, the fault lies wholly at my door.   --Dryden.
 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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