| Hutchinson-Gilford syndrome | <syndrome> Accelerated aging syndrome in which most of the characteristic stages of human senescence are compressed into less than a decade. Defect probably in DNA repair. (18 Nov 1997) |
|---|---|
| Hutchison syndrome | <syndrome> Adrenal neuroblastoma of infants with metastasis to the orbit; at one time erroneously believed to arise predominantly from the left adrenal gland. See: Pepper syndrome. (05 Mar 2000) |
| Hutchison, Sir Robert | <person> English paediatrician, 1871-1960. See: Hutchison syndrome. (05 Mar 2000) |
| hutchunsonian | A follower of John Hutchinson of Yorkshire, England, who believed that the Hebrew Scriptures contained a complete system of natural science and of theology. Source: Websters Dictionary (01 Mar 1998) |
| Huxley's layer | A layer of cells interposed between Henle's layer and the cuticle of the inner root sheath of the hair follicle. Synonym: Huxley's membrane, Huxley's sheath. (05 Mar 2000) |
| Huxley's membrane | A layer of cells interposed between Henle's layer and the cuticle of the inner root sheath of the hair follicle. Synonym: Huxley's membrane, Huxley's sheath. (05 Mar 2000) |
| Huxley's sheath | A layer of cells interposed between Henle's layer and the cuticle of the inner root sheath of the hair follicle. Synonym: Huxley's membrane, Huxley's sheath. (05 Mar 2000) |
| Huxley, Thomas | <person> English biologist, physiologist, and comparative anatomist, 1825-1895. See: Huxley's layer, Huxley's membrane, Huxley's sheath. (05 Mar 2000) |
| Huygenian eyepiece | <microscopy> An under corrected (blue rim at periphery of field) ocular designed by Huygens for the telescope and later adopted for achromatic objectives. This ocular consists of two plano-convex lenses separated by a diaphragm, hence it is of the negative type with the focal plane inside the system. Both plane surfaces face the eye, as distinguished from the Ramsden eyepiece. (05 Aug 1998) |
| Huygens' ocular | The compound ocular of a microscope, composed of two planoconvex lenses so arranged that the plane side of each is directed toward the observer. (05 Mar 2000) |
| Huygens' principle | Used in ultrasound technology; the principle that any wave phenomenon can be analyzed as the sum of many simple sources properly chosen with regard to phase and amplitude. (05 Mar 2000) |
| Huygens, Christian | <person> Dutch physicist, 1629-1695. See: Huygens' ocular, Huygens' principle. (05 Mar 2000) |
| huyghenian | Pertaining to, or invented by, Christian Huyghens, a Dutch astronomer of the seventeenth century; as, the Huyghenian telescope. Huyghenian eyepieceSee Eyepiece. Source: Websters Dictionary (01 Mar 1998) |
| huzz | To buzz; to murmur. "Huzzing and burring in the preacher's ear." (Latimer) Origin: An onomatopoea. Cf. Buzz. Source: Websters Dictionary (01 Mar 1998) |