| ARCHEOASTRONOMY | • archeoastronomy n. Alternative spelling of archaeastronomy. • ARCHEOASTRONOMY n. the scientific study of the beliefs and practices concerning astronomy that existed in ancient and prehistoric civilizations. |
| DEHYDRORETINOLS | • DEHYDRORETINOL n. vitamin A2. |
| ECTOMYCORRHIZAS | • ectomycorrhizas n. Plural of ectomycorrhiza. • ECTOMYCORRHIZA n. a type of mycorrhiza in which the fungus forms a layer on the outside of the roots of the plant. |
| ERYTHROPOIETINS | • erythropoietins n. Plural of erythropoietin. • ERYTHROPOIETIN n. a glycoprotein hormone that stimulates the production of red blood cells by stem cells in bone marrow. |
| HYDROCORTISONES | • hydrocortisones n. Plural of hydrocortisone. • HYDROCORTISONE n. a glucocorticoid hormone that is used to treat inflammatory and allergic conditions, aka cortisol. |
| HYDROEXTRACTORS | • hydroextractors n. Plural of hydroextractor. • HYDROEXTRACTOR n. a drying machine that works centrifugally. |
| HYSTRICOMORPHIC | • HYSTRICOMORPHIC adj. belonging to the rodent suborder Hystricomorpha, which includes porcupines, cavies, agoutis, and chinchillas. |
| ORNITHORHYNCHUS | • ornithorhynchus n. A platypus (genus Ornithorhynchus). • Ornithorhynchus prop.n. A taxonomic genus within the family Ornithorhynchidae – the single species Ornithorhynchus anatinus… • ORNITHORHYNCHUS n. the duckbill platypus. |
| ORTHOPSYCHIATRY | • orthopsychiatry n. (Psychiatry) branch of psychiatry concerned with the prevention of mental illness, especially in the young. • ORTHOPSYCHIATRY n. preventive psychiatry for young people. |
| PORPHYROGENITES | • porphyrogenites n. Plural of porphyrogenite. • PORPHYROGENITE n. a Byzantine emperor's son, born in the purple. |
| PROTOPORPHYRINS | • protoporphyrins n. Plural of protoporphyrin. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin. |
| PYROPHOTOGRAPHS | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| PYROPHOTOMETERS | • PYROPHOTOMETER n. a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits. |
| ULTRASONOGRAPHY | • ultrasonography n. (Medicine) The use of ultrasound to produce diagnostic images of the internal organs of the body, or of a foetus. • ultrasonography n. The use of ultrasound to form images of underwater structures. • ULTRASONOGRAPHY n. the use of ultrasound. |