Coil
[kɒɪl] or [kɔɪl]
Definition
(noun.) a structure consisting of something wound in a continuous series of loops; 'a coil of rope'.
(noun.) reactor consisting of a spiral of insulated wire that introduces inductance into a circuit.
(noun.) tubing that is wound in a spiral.
(noun.) a contraceptive device placed inside a woman's womb.
(noun.) a transformer that supplies high voltage to spark plugs in a gasoline engine.
(noun.) a round shape formed by a series of concentric circles (as formed by leaves or flower petals).
(verb.) wind around something in coils or loops.
Typist: Mason--From WordNet
Definition
(v. t.) To wind cylindrically or spirally; as, to coil a rope when not in use; the snake coiled itself before springing.
(v. t.) To encircle and hold with, or as with, coils.
(v. i.) To wind itself cylindrically or spirally; to form a coil; to wind; -- often with about or around.
(n.) A ring, series of rings, or spiral, into which a rope, or other like thing, is wound.
(n.) Fig.: Entanglement; toil; mesh; perplexity.
(n.) A series of connected pipes in rows or layers, as in a steam heating apparatus.
(n.) A noise, tumult, bustle, or confusion.
Typist: Ted
Synonyms and Synonymous
v. a. Gather into a coil.
n. Convolution, BIGHT, circular heap.
Typist: Marion
Definition
n. tumult: hubbub: noise: fuss.—Mortal coil the toil and trouble of human life.
v.t. to wind in rings as a rope a serpent &c.: to twist: to entangle.—v.i. to twist one's self.—n. a rope which has been gathered into rings: one of the rings into which a rope is gathered: a wire wound spirally to conduct electricity.—Coil up of a serpent to get into a position for springing: to gather into a ball.
Checked by Abram
Examples
- Attach a closely wound coil to a sensitive galvanometer (Fig. 237); naturally there is no deflection of the galvanometer needle, because there is no current in the wire. Bertha M. Clark. General Science.
- Gale suggested that his simple electro-magnet, with its few turns of thick wire, should be replaced by one with a coil of long thin wire. Rupert S. Holland. Historic Inventions.
- If a close coil of wire is suspended between the poles of a strong horseshoe magnet, it will not assume any characteristic position but will remain wherever placed. Bertha M. Clark. General Science.
- He carries with him this coil of rope. Charles Dickens. Our Mutual Friend.
- Voltmeters (Fig. 236), or instruments for measuring voltage, are like ammeters except that a wire of very high resistance is in circuit with the movable coil. Bertha M. Clark. General Science.
- Wires from the coil terminate on metal disks and are securely soldered there. Bertha M. Clark. General Science.
- It being summer-time, all the machine shops were closed until Monday morning, and there were several miles of wire to be wound on the coil. Frank Lewis Dyer. Edison, His Life and Inventions.
- I hadn't any particular work to give him, but I had a number of small induction coils, and to give him something to do I told him to fix them up and sell them among his sailor friends. Frank Lewis Dyer. Edison, His Life and Inventions.
- As soon as the current flows, the coils become magnetic and attract the soft iron armature, drawing it forward and causing the clapper to strike the bell. Bertha M. Clark. General Science.
- The strength of any electromagnet depends upon the number of coils wound on the iron core and upon the strength of the current which is sent through the coils. Bertha M. Clark. General Science.
- These coils were then annealed or softened and placed in a heap. Various. The Wonder Book of Knowledge.
- The relay coils are connected by wire to the spring piece, S, and the armature lever is connected to earth. Frank Lewis Dyer. Edison, His Life and Inventions.
- The artificial line, as well as that to which the two coils are joined, are connected to earth. Frank Lewis Dyer. Edison, His Life and Inventions.
- Just as the coils and braids of dark-brown hair had been set free, Sir James entered the room. George Eliot. Middlemarch.
- His old dog, Pilot, lay on one side, removed out of the way, and coiled up as if afraid of being inadvertently trodden upon. Charlotte Bronte. Jane Eyre.
- In the complete obscurity, Birkin found a comparatively sheltered nook, where a great rope was coiled up. D. H. Lawrence. Women in Love .
- At night, naked and scarcely pro tected from the wind and rain of this tempestuous c limate, they slept on the wet ground coiled up like animals. Walter Libby. An Introduction to the History of Science.
- The strength of a motor may be increased by replacing the singly coiled armature by one closely wound on an iron core; in some armatures there are thousands of turns of wire. Bertha M. Clark. General Science.
- Plante coiled up his sheets into a very handy cell like a little roll of carpet or pastry; but the trouble was that the battery took a long time to form. Frank Lewis Dyer. Edison, His Life and Inventions.
- If we represent a boiler by _B_, a radiator by the coiled tube, and a safety tank by _C_, we shall have a very fair illustration of the principle of a hot-water heating system. Bertha M. Clark. General Science.
- George went away then with the bouquet; but when he gave it to the owner, there lay a note, coiled like a snake among the flowers. William Makepeace Thackeray. Vanity Fair.
- The finished product is delivered to a belt-driven coiling reel on which it is wound. Various. The Wonder Book of Knowledge.
- Although such a straight current bearing wire attracts iron filings, its power of attraction is very small; but its magnetic strength can be increased by coiling as in Figure 211. Bertha M. Clark. General Science.
Checked by Leroy