RADIOISOTOPE

Pronunciation (US):

(GB):

 Dictionary entry overview: What does radioisotope mean? 

• RADIOISOTOPE (noun)
  The noun RADIOISOTOPE has 1 sense:

1. a radioactive isotope of an element; produced either naturally or artificially

  Familiarity information: RADIOISOTOPE used as a noun is very rare.

 Dictionary entry details 

• RADIOISOTOPE (noun)

Sense 1

Meaning:

A radioactive isotope of an element; produced either naturally or artificially

Classified under:

Nouns denoting substances

Hypernyms ("radioisotope" is a kind of...):

isotope (one of two or more atoms with the same atomic number but with different numbers of neutrons)

Hyponyms (each of the following is a kind of "radioisotope"):

tracer ((radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes)

label (a radioactive isotope that is used in a compound in order to trace the mechanism of a chemical reaction)

iodine-131 (heavy radioactive isotope of iodine with a half-life of 8 days; used in a sodium salt to diagnose thyroid disease and to treat goiter)

iodine-125 (light radioactive isotope of iodine with a half-life of 60 days; used as a tracer in thyroid studies and as a treatment for hyperthyroidism)

 Context examples 

Conventional labels for the DNA probe include the radioisotope labels 32P and 125I and the chemical label biotin.

(DNA Probes, NLM, Medical Subject Headings)

The acetate salt of the radioisotope carbon-11.

(Carbon-11 acetate, NCI Thesaurus)

Monoclonal antibody HuPAM4 (mAb HuPAM4) binds to cells expressing MUC1 antigen; mAb HuPAM4 may be useful as a carrier for radioisotopes and other antineoplastic therapeutic agents.

(Monoclonal Antibody HuPAM4, NCI Thesaurus)

DTPA is a bifunctional chelating agent thereby allowing for the binding of radioisotopes to the immunoconjugate.

(MOAB B-3-CHX-A-DTPA, NCI Thesaurus)

It contains a monoclonal antibody that binds to prostate cells, linked to a substance that can bind radioisotopes.

(Capromab pendetide, NCI Dictionary)

A radioconjugate consisting of an orally bioavailable small-molecule inhibitor of the epidermal growth factor receptor (erbB or HER) family of tyrosine kinases radiolabeled with carbon-14 with potential antineoplastic and beta-emitting radioisotope activity.

(Carbon C-14 Dacomitinib, NCI Thesaurus)

While other telescopes had found hints that this explosion was not spherical, NuSTAR found the "smoking gun" in the form of a radioisotope called titanium-44.

(Star Explosion is Lopsided, NASA)

A peptide analog of pituitary adenylate cyclase-activating peptide (PACAP) radiolabeled with the positron-emitting radioisotope copper Cu 64, with potential diagnostic ability upon positron emission tomography (PET) imaging.

(Copper Cu 64 TP3805, NCI Thesaurus)

When labeled with radioisotope, MoAb LL2 targets tumor cells that express CD22 antigen and delivers cytotoxic radiation that may be used to treat B-cell lineage cancers.

(Monoclonal Antibody LL2, NCI Thesaurus)

"In the short term we're looking to make a compact infrared power supply, perhaps to replace radioisotope thermoelectric generators."

(Harvesting Electrical Power from Waste Heat, The Titi Tudorancea Bulletin)