| GYROFREQUENCIES | • gyrofrequencies n. Plural of gyrofrequency. • GYROFREQUENCY n. the frequency with which a charged particle (as an electron) executes spiral gyrations in moving obliquely across a magnetic field. |
| GYROSTABILISERS | • gyrostabilisers n. Plural of gyrostabiliser. • GYROSTABILISER n. a gyroscopic device for countering the roll of a ship, etc., also GYROSTABILIZER. |
| GYROSTABILIZERS | • gyrostabilizers n. Plural of gyrostabilizer. • gyro-stabilizers n. Plural of gyro-stabilizer. • GYROSTABILIZER n. a gyroscopic device for countering the roll of a ship, etc., also GYROSTABILISER. |
| HYPERTHYROIDISM | • hyperthyroidism n. (Medicine) The excessive production of hormones by the thyroid. • hyperthyroidism n. (Pathology) The pathological condition resulting from these excess hormones. • HYPERTHYROIDISM n. excessive functional activity of the thyroid gland. |
| HYPOTHYROIDISMS | • hypothyroidisms n. Plural of hypothyroidism. • HYPOTHYROIDISM n. deficient activity of the thyroid gland. |
| MICROPYROMETERS | • MICROPYROMETER n. a pyrometer for measuring the temperature of very small objects. |
| PORPHYROGENITES | • porphyrogenites n. Plural of porphyrogenite. • PORPHYROGENITE n. a Byzantine emperor's son, born in the purple. |
| PYROELECTRICITY | • pyroelectricity n. (Physics) The generation of electric charge as a result of a change in temperature. • PYROELECTRICITY n. electric charge produced in some crystals by temperature changes. |
| PYROPHOTOGRAPHS | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| PYROPHOTOGRAPHY | • pyrophotography n. (Photography) Any photographic process involving the use of heat to fix the picture. • PYROPHOTOGRAPHY n. the production of pyrophotographs. |
| 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. |
| PYROTECHNICALLY | • pyrotechnically adv. By means of pyrotechnics. • PYROTECHNICAL adv. relating to pyrotechnics, the art of making fireworks, also PYROTECHNIC. |
| PYROTECHNICIANS | • pyrotechnicians n. Plural of pyrotechnician. • PYROTECHNICIAN n. one who makes fireworks. |
| THYROCALCITONIN | • thyrocalcitonin n. (Biochemistry) Alternative form of calcitonin. • THYROCALCITONIN n. a hormone secreted by the thyroid gland, controlling the rate of bone destruction. |
| THYROIDECTOMIES | • thyroidectomies n. Plural of thyroidectomy. • THYROIDECTOMY n. the surgical removal of the thyroid gland. |