Definition

Noun: - The specific organ intended to receive the primary effect of a treatment or substance: In medical contexts, particularly radiology and pharmacology, a "target organ" is the particular organ or tissue that is the intended destination for a therapeutic agent, such as a radioactive substance or drug, to exert its desired effect.

Usage

• The term is primarily used in specialized medical and scientific writing to describe the focus of a therapeutic intervention.
• It is often discussed in relation to drug delivery, radiation therapy, and toxicology.

Examples

• Noun:
  • The liver is the target organ for this new hepatitis medication.
  • In the treatment plan, the radiologist identified the tumor as the target organ for the radioactive seeds.
  • Researchers study how a toxin travels to its target organ.

Advanced Usage

• "Primary target organ": Emphasizes the main organ affected when a substance can impact multiple sites.
  • While the drug affects several systems, the kidney is the primary target organ.
• Used in risk assessment to describe the organ most susceptible to damage from a chemical exposure.
  • Safety data sheets list the lungs as the target organ for this industrial chemical.

Variants and Related Words

• Target tissue (n): A more general term that can refer to a specific tissue type rather than a whole organ as the intended site of action.
• Organotropism (n): The affinity of a substance (like a drug, virus, or toxin) for a particular organ.

Synonyms

• Intended site: A more general phrase for the planned location of an effect.
• Site of action: A term used in pharmacology for the location where a drug produces its effect.

Related Phrases

• Target organ toxicity: Refers to the specific adverse effects a substance has on its intended organ.
  • The study focused on the compound's potential for liver target organ toxicity.
• Critical target organ: The organ whose damage would be most detrimental to health in a toxicological assessment.

Noun

1. (radiology) organ intended to receive the therapeutic dose of a radioactive substance