Suddenly, the darkness came alive with muzzle flashes and tracer rounds.
tracer bullets, each with a descending arc, were zinging all around as Rigg swung LCI(L)-88 to the right.
Below us, on Sultan Ismail Street, government troops thrust lances of tracer fire towards a horde of approaching cadavers.
Something in the quiet significance of the tracer's brief command sent a curious thrill through the younger man.
That there tracer started to hum again soon after you was out for a while.
The tracer, when fully submerged, displaces 1,000 tons of water.
Then build me a tracer detector that'll pick it up at high velocity.
The pupil may now, with a pattern-wheel or tracer, indent or mark a line or narrow groove in the outline of the pattern.
Where the wheel cannot be employed, as in small corners, use the tracer.
Then the ground guns began to blast, and tracer bullets arched upward like rockets in a celebration.
tracer trac·er (trā'sər)
A substance, such as a dye or a radioactive isotope, that is introduced into and followed through a biological or chemical process, by virtue of its radioactive signature, color, or other distinguishing physical property, thus providing information on the course of the process or on the components or events involved.
An instrument used in dissecting out nerves and blood vessels.
An identifiable substance, such as a dye or radioactive isotope, that can be followed through the course of a mechanical, chemical, or biological process. Tracers are used in radioimmunoassays and other laboratory testing. The use of radioactive iodine, for example, can give information about thyroid gland metabolism. Also called label.