tracer

• Существительное с несколькими значениями: следователь, разыскивающий пропавших людей или товары; инструмент для копирования чертежей; радиоактивный изотоп, используемый в медицинской визуализации; или боеприпасы с видимым дымным следом.

A noun with multiple meanings: an investigator who locates missing persons or goods; an instrument for making tracings; a radioactive isotope used in medical imaging; or ammunition with a visible smoke trail.

1. Investigator of missing persons or goodsB2formal

   A person employed to locate missing individuals or lost items.

   Сыщик

   • The company hired a tracer to find the missing shipment.
   • A tracer was assigned to locate the lost documents.
   • The police tracer successfully found the missing child.

   Synonymsfinderlocatorsearchertracker

2. Instrument for tracingB2formal

   A tool or device used to create a copy or outline of something.

   Инструмент для копирования

   • The artist used a tracer to copy the design onto the canvas.
   • An optical tracer helps in reproducing complex drawings.
   • The engineer employed a tracer to map the circuit layout.

3. Radioactive isotope for medical imagingC1formalmedical

   A radioactive substance introduced into the body to track biological processes or diagnose conditions.

   Радиоактивный индикатор

   • The doctor injected a tracer to examine the patient's kidney function.
   • Radioactive tracers are used in PET scans to detect cancer.
   • The tracer revealed how the drug was metabolized in the body.

   Synonymsradiopharmaceutical

4. Ammunition with visible trailC1formal

   A type of bullet or projectile that leaves a visible smoke or light trail during flight for observation.

   Трассирующий боеприпас

   • The soldiers used tracer rounds to adjust their aim at night.
   • Tracer ammunition helps in tracking the path of fire.
   • The gunfire left bright tracer streaks across the sky.

   Synonymstracer bullet