D defs.my
Entry 7 senses · 4 variants Webster, 1913

Coil

/(koil)/ · IPA /kɔɪl/
01 v. t. To wind cylindrically or spirally; as, to coil a rope when not in use; the snake coiled itself before springing.
imp. & p. p. Coiled; p. pr. & vb. n. Coiling
  1. 1.
    To wind cylindrically or spirally; as, to coil a rope when not in use; the snake coiled itself before springing.
  2. 2.
    To encircle and hold with, or as with, coils.[Obs. or R.]
02 v. i. To wind itself cylindrically or spirally; to form a coil; to wind; -- often with about or around.
  1. 1.
    To wind itself cylindrically or spirally; to form a coil; to wind; -- often with about or around.
    “You can see his flery serpents . . . Coiting, playing in the water.” Longfellow.
03 n. A ring, series of rings, or spiral, into which a rope, or other like thing, is wound.
  1. 1.
    A ring, series of rings, or spiral, into which a rope, or other like thing, is wound.
    “The wild grapevines that twisted their coils from trec to tree.” W. Irving.
  2. 2.
    Fig.: Entanglement; toil; mesh; perplexity.
  3. 3.
    A series of connected pipes in rows or layers, as in a steam heating apparatus.
Phrases & compounds
Induction coil — See under Induction.
Ruhmkorff's coil — an induction coil, sometimes so called from Ruhmkorff (�), a prominent manufacturer of the apparatus.
04 n. A noise, tumult, bustle, or confusion.
  1. 1.
    A noise, tumult, bustle, or confusion.[Obs.]