Radionuclide (redirected from Radionuclides)

radionuclide /ra·dio·nu·clide/ (-noo´klid) a nuclide that disintegrates with the emission of corpuscular or electromagnetic radiations.

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ra·di·o·nu·clide (rd--nkld)

n.

A nuclide that has artificial or natural origin and that exhibits radioactivity.

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Radionuclide

A chemical substance, called an isotope, that exhibits radioactivity. A gamma camera, used in nuclear medicine procedures, will pick up the radioactive signals as the substance gathers in an organ or tissue. They are sometimes referred to as tracers.

Mentioned in: Bone Nuclear Medicine Scan, Gallium Scan of the Body, Liver Nuclear Medicine Scan, Thyroid Nuclear Medicine Scan

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radionuclide (rā´dēōnoo´klīd),

n an unstable or radioactive type of atom characterized by the constitution of its nucleus and capable of existing for a measurable time. The nuclear constitution is specified by the number of protons
(A), number of neutrons
(N), and energy content, or alternatively by the atomic number
(Z), mass number
(A − N + Z), and atomic mass.

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radionuclide

a radioactive nuclide; one that disintegrates with the emission of corpuscular or electromagnetic radiations. Used in diagnosis for whole body or individual organ scanning. See also radioactive isotope, nuclide.