n. & v.
—n.
1 a fiery particle thrown off from a fire, or alight in ashes, or produced by a flint, match, etc.
2 (often foll. by of) a particle of a quality etc. (not a spark of life; a spark of interest).
3 Electr. a a light produced by a sudden disruptive discharge through the air etc. b such a discharge serving to ignite the explosive mixture in an internal-combustion engine.
4 a a flash of wit etc. b anything causing interest, excitement, etc. c (also bright spark) a witty or lively person.
5 a small bright object or point, e.g. in a gem.
6 (Sparks) a nickname for a radio operator or an electrician.
—v.
1 intr. emit sparks of fire or electricity.
2 tr. (often foll. by off) stir into activity; initiate (a process) suddenly.
3 intr. Electr. produce sparks at the point where a circuit is interrupted.
Phrases and idioms:
spark chamber an apparatus designed to show ionizing particles. spark-gap the space between electric terminals where sparks occur. sparking-plug Brit. = spark-plug. spark-plug a device for firing the explosive mixture in an internal-combustion engine.
Derivatives:
sparkless adj. sparky adj.
Etymology: ME f. OE spaeligrca, spearca
2.
n. & v.
—n.
1 a lively young fellow.
2 a gallant, a beau.
—v.intr. play the gallant.
Derivatives:
sparkish adj.
Etymology: prob. a fig. use of SPARK(1)
Useful english dictionary. 2012.