Definition

1. Noun:
   • A hormone that reduces urine production: Antidiuretic hormone is a substance produced by the body that signals the kidneys to reabsorb water, thereby decreasing the volume of urine produced and helping to conserve body water.
   • A regulator of blood pressure and water balance: This hormone also causes blood vessels to constrict, which can increase blood pressure. Its primary role is to maintain the body's fluid balance and osmotic pressure.

Usage Examples

• Noun:
  • The doctor explained that antidiuretic hormone helps prevent dehydration.
  • A deficiency in antidiuretic hormone can lead to a condition called diabetes insipidus, characterized by excessive thirst and urination.

Advanced Usage

• "Secretion of antidiuretic hormone": Refers to the process of the hormone being released into the bloodstream.
  • Secretion of antidiuretic hormone increases when the body is dehydrated.
• "Antidiuretic hormone levels": Refers to the concentration of the hormone in the blood.
  • The test measured the patient's antidiuretic hormone levels.

Variants and Related Words

• ADH: A common acronym for Antidiuretic Hormone.
  • The lab report showed normal ADH levels.
• Vasopressin: The more specific scientific name for this hormone.
  • Vasopressin is another term for antidiuretic hormone.
• Antidiuretic: (Adjective) Describing something that suppresses urine formation.
  • The drug has a strong antidiuretic effect.

Synonyms

• Vasopressin: The alternate name for the same hormone.
• Arginine vasopressin (AVP): The full biochemical name.

Related Phrases

• Syndrome of inappropriate antidiuretic hormone secretion (SIADH): A medical condition where the body produces too much of this hormone.
  • The patient was diagnosed with SIADH.

Noun

1. hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules