tracer

1. 1. One who is employed to locate missing goods or persons.
   2. An investigation or inquiry organized to trace missing goods or persons.
2. Any of several instruments used in making tracings or in imprinting designs by tracing.
3. A tracer bullet.
4. An identifiable substance, such as a dye or a radioactive isotope, that is introduced into a biological or mechanical system and can be followed through the course of a process, providing information on the pattern of events in the process or on the redistribution of the parts or elements involved. Also called label.

1. a mechanical device used to trace a pattern of mandibular movements. 2. a foreign substance mixed with or attached to a given substance to enable the distribution or location of the latter to be determined subsequently. A radioactive tracer is a physical or chemical tracer having radioactivity as its distinctive property.

n. a bullet or shell whose course is made visible in flight by a trail of flames or smoke, used to assist in aiming.

See the Introduction, Abbreviations and Pronunciation for further details.

A material, usually a radioactive isotope, which can he used to trace the course of an element or compound through the body.

A means by which something may be followed, as (1) a mechanical device by which the outline or movements of an object can be graphically recorded, or (2) a material by which the progress of a compound through the body may be observed.

• radioactive t. — a radioactive isotope replacing a stable chemical element in a compound introduced into the body, enabling its metabolism, distribution and elimination to be followed in the living animal.

Tracer may refer to:

• Histochemical tracer, a substance used for tracing purposes in histochemistry, the study of the composition of cells and tissues
• Isotopic tracer, a substance with an isotope that has been enriched to a greater level than that found in nature
• Radioactive tracer, a substance containing a radioisotope that is used for tracking purposes
• Flow tracer, any fluid property used to track fluid motion:
  • Dye tracer
  • In the ocean, salinity, potential temperature, and the concentration of many different chemical compounds
• Tracer ammunition, special bullets that burn brightly to enable the shooter to follow the bullets' trajectories
• Mercury Tracer, an automobile
• Tracer (DC Comics), a DC Comics character
• Tracer (Marvel Comics), a Marvel Comics supervillain
• TRACER (magazine), a music magazine based out of Cincinnati, Ohio.
• TRACERS, a stage show about American involvement in the Vietnam War.
• TRACER (cosmic ray detector), Transition Radiation Array for Cosmic Energetic Radiation is a balloon borne cosmic ray detector.
• Tracer (Transformers), a fictional character.

See also

• Trace
• Tracing
• Tracker
• Tracer use in the oil industry
• Traser
• Traceur

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Dansk (Danish)
n. - sporprojektil

Nederlands (Dutch)
speurder, opsporingsonderzoek, lichtspoorkogel

Français (French)
n. - (Mil) balle traçante, obus traçant, (Chim, Méd) traceur, traceur (personne), traceur (instrument)

Deutsch (German)
n. - Aufspürer, Leuchtspurgeschoß, Indikator

Ελληνική (Greek)
n. - (στρατ.) τροχιοδεικτικό βλήμα, ανιχνευτής, ιχνηλάτης, (ιατρ.) ιχνηθέτης

Italiano (Italian)
tracciante

Português (Portuguese)
n. - investigador (m), pesquisador (m), desenhador (m)

Русский (Russian)
чертежный прибор, пантограф, копировщик, (тех.) самописец, самозаписывающий прибор, трассирующая пуля/снаряд, пристяжная лошадь

Español (Spanish)
n. - indicador, diseñador, tiralíneas, patrón

Svenska (Swedish)
n. - spårare, utforskare, tecknare, kalkerare, kopist, efterlysning (am.), rits

中文（简体）(Chinese (Simplified))
追踪者, 失物追查员, 映描员, 显迹物

中文（繁體）(Chinese (Traditional))
n. - 追蹤者, 失物追查員, 映描員, 顯跡物

한국어 (Korean)
n. - 추적자, 분실물 수색계원, 탐침

日本語 (Japanese)
n. - 追跡者, 紛失物捜索係, 紛失物の照会状, 曳光弾, 書き写すもの, 透写用器具, トレーサー

العربيه (Arabic)
‏(الاسم) رسام, موظف مهمته التحقيق في ضياع ألطرود أو ألرسائل‏

עברית (Hebrew)
n. - ‮עוקב, חוקר, נותב, קליע נותב‬

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