tracer

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.

• 🌐اسم متعدد المعاني: مَن يتقصّى أثر المفقودين أو يبحث عنهم، أو أداة تُستعمل في نسخ المخططات والرسومات، أو نظير مشعّ يُستخدم في التصوير الطبي، أو مقذوف يُخلّف أثرًا دخانيًا مرئيًا.

1. Investigator of missing persons or goods B2 formal

   A person employed to locate missing individuals or lost items.

   • 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.

   🌐مُتَتَبِّع المفقودات

   المرادفات: finderlocatorsearchertracker

2. Instrument for tracing B2 formal

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

   • 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.

   🌐أداة تتبع الرسم

3. Radioactive isotope for medical imaging C1 formal medical

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

   • 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.

   🌐نظير مشع تتبعي

   المرادفات: radiopharmaceutical

4. Ammunition with visible trail C1 formal

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

   • 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.

   🌐طلقة متتبعة

   المرادفات: tracer bullet

• tracers plural form
• tracers' possessive plural form
• tracer's possessive singular form