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
This is by no means the first time NASA has lit up the night with vapor tracers.
In addition to dissecting the stomach contents of marine animals, scientists have also previously studied food webs by looking at naturally-occurring biochemical tracers such as stable isotopes and fatty acids.
Red tracer fire arced across Takhto Valley in response.
Different types of tracers light up in the presence of diferent particles.
Some critics say that while brain imaging using radioactive tracers can reliably detect amyloid in the brain, there is interpretation involved in deciding whether a person has enough present to be considered amyloid-positive or -negative.
Outside, the skies lit up with pyrotechnics, some launching red tracers above the thousands of revelers who filled the streets, leaning out of their car windows or marching in the city center.
Investigators also recovered tracer rounds from Paddock's room.
As part of the Statesman plan to track down the mysterious Golden Circle, Eggsy has to plant a tracer in a woman named Clara von Gluckfberg (Poppy Delevingne) at a music festival.
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.
First Known Use of tracer
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
Seen and Heard
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