 rh |
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| 1. | [ noun ] (medicine,immunology,pharmacology) 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 | |
| Synonyms: | Rh_factor rhesus_factor | |
| Related terms: | antigen | |
| 2. | [ noun ] (biology,anatomy,biochemistry) 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 releasing hormone causes the anterior pituitary to secrete a specific hormone | |
| Synonyms: | hypothalamic_releasing_hormone releasing_factor releasing_hormone hypothalamic_releasing_factor | |
| Related terms: | hormone | |
| 3. | [ noun ] (chemistry) a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum | |
| Synonyms: | atomic_number_45 rhodium | |
| Related terms: | metallic_element | |
| Similar spelling: |
rho Rhue Rhee rhea r |
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