| DEXTROROTATORY | • dextrorotatory adj. (Chemistry, of an optically active compound or crystal) That rotates the plane of polarized light to… • DEXTROROTATORY adj. turning to the right, esp. turning plane of polarized light, also DEXTROROTARY. |
| HYDROCORTISONE | • hydrocortisone n. (Biochemistry, steroids, pharmacology) A glucocorticoid steroid hormone C21H30O5 produced by the adrenal… • HYDROCORTISONE n. a glucocorticoid hormone that is used to treat inflammatory and allergic conditions, aka cortisol. |
| MICROSPOROCYTE | • microsporocyte n. (Biology) A cell that produces (typically four) microspores during meiosis. • MICROSPOROCYTE n. a microspore mother cell. |
| ORTHOHYDROGENS | • orthohydrogens n. Plural of orthohydrogen. • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction. |
| ORTHOMYXOVIRUS | • orthomyxovirus n. (Virology) Any RNA virus of Orthomyxoviridae family characterised by having two long glycoprotein spikes. |
| ORTHOPTEROLOGY | • orthopterology n. The scientific study of the Orthoptera. • ORTHOPTEROLOGY n. the study of cockroaches. |
| ORTHOPYROXENES | • orthopyroxenes n. Plural of orthopyroxene. • ORTHOPYROXENE n. a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene. |
| OSMOREGULATORY | • osmoregulatory adj. Of or pertaining to osmoregulation. • OSMOREGULATORY adj. relating to osmoregulation. |
| PROPAROXYTONES | • proparoxytones n. Plural of proparoxytone. • PROPAROXYTONE n. in ancient Greek, a word having the acute accent on the third last syllable. |
| PROPORTIONABLY | • proportionably adv. In a proportionable manner; proportionately. • PROPORTIONABLE adv. proportional, proportionate. |
| PROPORTIONALLY | • proportionally adv. In proportion; in due degree; adapted relatively. • PROPORTIONAL adv. relating to proportion. |
| PROTOPORPHYRIN | • protoporphyrin n. (Biochemistry) Any porphyrin that lacks a central metal ion. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin. |
| PYROPHOTOGRAPH | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| PYROPHOTOMETER | • PYROPHOTOMETER n. a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits. |
| PYROPHOTOMETRY | • PYROPHOTOMETRY n. the measurement of the temperature of an incandescent body by photometric measurement of the light it emits. |