3. That which, like a spark, may be kindled into a flame, or into
action; a feeble germ; an elementary principle. "If any spark of life
be yet remaining." Shak. "Small intellectual spark." Macaulay. "Vital
spark of heavenly flame." Pope.
We have here and there a little clear light, some sparks of bright
knowledge.
Locke.
Bright gem instinct with music, vocal spark.
Wordsworth.
Spark arrester, a contrivance to prevent the escape of sparks while it
allows the passage of gas, -- chiefly used in the smokestack of a
wood-burning locomotive. Called also spark consumer. [U.S.]
Spark, n. [Icel. sparkr lively, sprightly.] 1. A brisk, showy, gay man.
The finest sparks and cleanest beaux.
Prior.