D defs.my
Entry 6 senses Webster, 1913

Quirk

/(kwẽrk)/ · IPA /kwɝk/
01 n. A sudden turn; a starting from the point or line; hence, an artful evasion or subterfuge; a shift; a quibble; as, the quirks of a pettifogger.
  1. 1.
    A sudden turn; a starting from the point or line; hence, an artful evasion or subterfuge; a shift; a quibble; as, the quirks of a pettifogger.
    “We ground the justification of our nonconformity on dark subtilties and intricate quirks.” Barrow.
  2. 2.
    A fit or turn; a short paroxysm; a caprice.[Obs.]
  3. 3.
    A smart retort; a quibble; a shallow conceit.
    “Some odd quirks and remnants of wit.” Shak.
  4. 4.
    An irregular air; as, light quirks of music.
  5. 5.
    A piece of ground taken out of any regular ground plot or floor, so as to make a court, yard, etc.; -- sometimes written quink.(Building)
  6. 6.
    A small channel, deeply recessed in proportion to its width, used to insulate and give relief to a convex rounded molding.(Arch.)
Phrases & compounds
Quirk molding — a bead between two quirks.