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TRACER
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I. (noun)
Sense 1
Meaning:
Ammunition whose flight can be observed by a trail of smoke
Synonyms:
Classified under:
Nouns denoting man-made objects
Hypernyms ("tracer" is a kind of...):
ammo; ammunition (projectiles to be fired from a gun)
Sense 2
Meaning:
(radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes
Classified under:
Nouns denoting man-made objects
Hypernyms ("tracer" is a kind of...):
radioisotope (a radioactive isotope of an element; produced either naturally or artificially)
Domain category:
radiology (the branch of medical science dealing with the medical use of X-rays or other penetrating radiation)
Sense 3
Meaning:
An instrument used to make tracings
Classified under:
Nouns denoting man-made objects
Hypernyms ("tracer" is a kind of...):
instrument (a device that requires skill for proper use)
Derivation:
trace (make a mark or lines on a surface)
trace (copy by following the lines of the original drawing on a transparent sheet placed upon it; make a tracing of)
Sense 4
Meaning:
An investigator who is employed to find missing persons or missing goods
Classified under:
Hypernyms ("tracer" is a kind of...):
detective; investigator; police detective; tec (a police officer who investigates crimes)
Context examples:
An amino acid analog radiolabeled with fluorine F 18, a positron emitting isotope, used as a tracer in positron emission tomography (PET).
(F-18 Fluoroethyltyrosine, NCI Thesaurus)
A fractional rate by which tracer leaves plasma and is being trapped in a cell.
(Influx Constant, NCI Thesaurus)
A radioconjugate containing a low molecular weight tracer, DCFBC, specific for prostate-specific membrane antigen (PSMA) and labeled with the positron-emitting isotope fluorine F 18 with potential prostate tumor imaging upon positron emission tomography (PET).
(Fluorine F 18 DCFBC, NCI Thesaurus)
The system detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (tracer), which is introduced into the body on the biologically active molecule (fludeoxyglucose) FDG.
(FDG-Positron Emission Tomography, NCI Thesaurus)
The radioisotope moiety of this agent acts as a radioactive tracer.
(Carbon C 14 Eribulin Acetate, NCI Thesaurus)
A 40-carbon hydrocarbon precursor of carotenoids radiolabeled to carbon C 13 and potentially used for tracer purposes of phytofluene in vivo.
(Carbon C 13 Phytofluene, NCI Thesaurus)
Lactate uptake could also have predictive value when used as an imaging tracer.
(Study Challenges Long-Standing Concept in Cancer Metabolism, The Titi Tudorancea Bulletin)
C 11 AMT is not incorporated into proteins, nor are metabolites released into the blood pool, making C 11 AMT an excellent tracer for serotonin synthesis in vivo.
(Carbon C 11 Alpha-methyltryptophan, NCI Thesaurus)
Labeling with the radioactive tracer carbon C 14 allows for evaluation of ixazomib's absorption, distribution, metabolism and excretion (ADME).
(Carbon C 14-labeled Ixazomib, NCI Thesaurus)
A 40-carbon hydrocarbon precursor of carotenoids radiolabeled to carbon C 13 and potentially used for tracer purposes of phytoene in vivo.
(Carbon C 13 Phytoene, NCI Thesaurus)
