RADIOACTIVE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does radioactive mean? 

• RADIOACTIVE (adjective)
  The adjective RADIOACTIVE has 1 sense:

1. exhibiting or caused by radioactivity

  Familiarity information: RADIOACTIVE used as an adjective is very rare.

 Dictionary entry details 

• RADIOACTIVE (adjective)

Sense 1

Meaning:

Exhibiting or caused by radioactivity

Context example:

radioactive fallout

Similar:

hot (having or dealing with dangerously high levels of radioactivity)

Antonym:

nonradioactive (not radioactive)

Derivation:

radioactivity (the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay)

 Context examples 

The radioisotope moiety of this agent acts as a radioactive tracer.

(Carbon C 14 Eribulin Acetate, NCI Thesaurus)

A drug containing a form of radioactive iodine called I 123 that is used to detect certain types of tumors, including pheochromocytomas and neuroblastomas.

(AdreView, NCI Dictionary)

A branch of medicine that uses small amounts of radioactive substances to make pictures of areas inside the body and to treat disease.

(Nuclear medicine, NCI Dictionary)

If enough radioactive material accumulates in an asteroid, the heat produced as it decays will be sufficient to melt ice inside the asteroid.

(Vitamin B3 might have been made in space, delivered to Earth by meteorites, NASA)

When conjugated with a radioactive isotope, Lym-1 monoclonal antibody selectively transports the cytotoxic radioisotope to HLA-Dr10-expressing tumor cells, thereby sparing healthy B-cells and normal tissues.

(Monoclonal Antibody Lym-1, NCI Thesaurus)

A procedure in which a small amount of carbon-11 choline (a radioactive form of the vitamin choline) is injected into a vein.

(carbon-11 choline PET-CT scan, NCI Dictionary)

A small amount of a substance called radioactive MIBG is injected into a vein and travels through the bloodstream.

(MIBG scan, NCI Dictionary)

After CC49-streptavidin binds to cancer cells, a radioactive compound called yttrium Y 90 DOTA-biotin will find those cells and kill them.

(CC49-streptavidin, NCI Dictionary)

They can be used alone or to carry drugs, toxins, or radioactive substances directly to cancer cells.

(Monoclonal antibody, NCI Dictionary)

A small amount of a substance called radioactive metaiodobenzylguanidine is injected into a vein and travels through the bloodstream.

(Metaiodobenzylguanidine scan, NCI Dictionary)