Examples of tracer in a Sentence
The enemy fired tracers at the aircraft carrier.
They injected her with a radioactive tracer and tracked it via X-rays.
Recent Examples of tracer from the Web
Typically, a chemical tracer would be added to the water, like a salt or dye, to track the flow.
The radioactive tracer lights up on a computer monitor wherever the heart's blood vessels are blocked or bones are riddled with potentially cancerous tumors.
The wildfire was supposedly started by tracer rounds fired at a shooting range.
To trace how the cells and their progeny changed over time, the researchers equipped some of the single-cell fish embryos with genetic tracers: many tiny pieces of unique DNA, injected into the embryos' cytoplasm.
Antiaircraft tracers lit up the skies over Damascus and explosive sounds bounced off the city’s hills, mixing with the mosques’ calls to prayer.
The official said investigators searching Paddock's hotel room found tracer rounds and a document with the name of the Mesa man who sold him the ammunition.
Geologists placed tracer dyes in the underground rivers and learned the cavern aquifer extends 4 miles east to White Oak Sinks, in the isolated valley of Cades Cove in Great Smoky Mountains National Park near the North Carolina line.
The 351-foot tracer cut the lead to 7-4, chased reliever Andrew Chafin from the mound and gave Myers his fifth career multi-homer performance.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tracer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
TRACER Defined for English Language Learners
Definition of tracer for English Language Learners
: a type of bullet that shows its path by creating smoke or light as it moves through the air
medical : a substance that is put in a patient's body so that doctors can watch a biological process (such as digestion) or see how a condition (such as cancer) is progressing
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