Rh (Noun)
Meaning 1
A white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum.
Classification
Nouns denoting substances.
Examples
- Rhodium is a rare and valuable member of the platinum group of elements.
- The catalytic converter in a car uses rhodium to reduce emissions.
- Rhodium is often alloyed with platinum to make jewelry and other decorative items.
- The rhodium content in platinum ores can vary greatly depending on the location.
- A small amount of rhodium is added to white gold to give it a reflective appearance.
Synonyms
Hypernyms
Meaning 2
Any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones; each of these hormones causes the anterior pituitary to secrete a specific hormone.
Classification
Nouns denoting body parts.
Examples
- Releasing hormones play a crucial role in regulating the endocrine system by stimulating the release of anterior pituitary hormones.
- The hypothalamus produces several types of releasing hormones that help control various bodily functions.
- Thyrotropin-releasing hormone is a type of releasing hormone that stimulates the anterior pituitary gland to secrete thyroid-stimulating hormone.
- Releasing hormones are carried by the hypophyseal portal vein to the anterior pituitary gland where they exert their effects.
- Dysregulation of releasing hormones can lead to a range of endocrine disorders, including hypothyroidism and hyperthyroidism.
Synonyms
Hypernyms
Meaning 3
A blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia.
Classification
Nouns denoting substances.
Examples
- Rh is an antigen found on the surface of red blood cells in most people, and it plays a critical role in transfusion medicine.
- A person who lacks the Rh antigen is considered Rh-negative, and their immune system may react if they receive blood from an Rh-positive donor.
- During pregnancy, Rh incompatibility between the mother and fetus can cause serious health issues, and treatment may be necessary to prevent complications.
- Blood banks take the Rh status of donors into consideration to minimize the risk of adverse reactions when transfusing blood to patients.
- A woman with an Rh-negative blood type who becomes pregnant with an Rh-positive fetus may need to receive injections of Rh immune globulin to prevent her immune system from attacking the fetus.