| horizontal plate of palatine bone | The part of the palatine bone that forms the posterior part (approximately one third) of the bony palate. Synonym: lamina horizontalis ossis palatini. (05 Mar 2000) |
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| horizontal resorption | A progressive loss of alveolar and supporting bone surrounding the teeth, beginning at the most coronal level of the bone. Synonym: horizontal resorption. (05 Mar 2000) |
| horizontal survey | <epidemiology> A study of a community, perhaps stratified by age, sex, ethnicity etc., but at one point in time or over a short time interval. Although a snapshot, horizontal surveys of prevalence and intensity within different age classes of a community can nevertheless provide valuable information on the rate at which hosts acquire infection through time, provided that the host and parasite populations have remained approximately stable for a period of time (i.e. Stable endemicity). Same as cross-sectional study , converse of longitudinal study. (05 Dec 1998) |
| horizontal transmission | <epidemiology> Transmission occurring generally within a population, but not including vertical transmission. (05 Dec 1998) |
| horizontal vertigo | Dizziness experienced on lying down. (05 Mar 2000) |
| horizontalis | Horizontal, referring to the plane of the body, perpendicular to the vertical plane, at right angles both to the median and coronal planes, that separates the body into upper and lower parts. Origin: L. (05 Mar 2000) |
| hormesis | An effect where a toxic substance acts like a stimulant in small doses, but it is an inhibitor in large doses. (09 Oct 1997) |
| hormion | A craniometric point at the junction of the posterior border of the vomer with the sphenoid bone. Origin: G. Hormos, cord, chain, necklace (05 Mar 2000) |
| hormogonal | Referring to a class of Cyanobacteria in which the cells grow in filaments. (05 Mar 2000) |
| hormogonium | <botany> A chain of small cells in certain algae, by which the plant is propogated. Origin: NL, fr. Gr. A chain + generation. Source: Websters Dictionary (01 Mar 1998) |
| hormonal | Pertaining to or of the nature of a hormone. (18 Nov 1997) |
| hormonal gingivitis | Gingivitis in which the host response to bacterial plaque is presumably exacerbated by hormonal alterations occurring during puberty, pregnancy, oral contraceptive use, or menopause. (05 Mar 2000) |
| hormonal therapy | Treatment of cancer by alteration of the hormonal balance. Some cancer will only grow in the presence of certain hormones. (09 Oct 1997) |
| hormone | <endocrinology> A naturally occuring substance secreted by specialised cells that affects the metabolism or behaviour of other cells possessing functional receptors for the hormone. Hormones may be hydrophilic, like insulin, in which case the receptors are on the cell surface or lipophilic, like the steroids, where the receptor can be intracellular. Some cancers may be stimulated and others inhibited by hormones (for example breast and prostate cancer). Some hormones can be synthesised and used as replacement in glandular deficiencies or as treatment for some cancers. Hormones may be injected, others taken by mouth. (29 Sep 1997) |
| hormone antagonists | Chemical substances which inhibit the function of the endocrine glands, the biosynthesis of their secreted hormones, or the action of hormones upon their specific sites. (12 Dec 1998) |
Synonyms : Alpha-Peroxidase, Ferrihorseradish Peroxidase, Horseradish Peroxidase II, Horseradish Peroxidase III, Alpha Peroxidase, II, Horseradish Peroxidase, III, Horseradish Peroxidase, Peroxidase II, Horseradish, Peroxidase III, Horseradish, Peroxidase, Horseradish
Synonyms : Equus caballus, Equus przewalskii, Horse, Domestic, Domestic Horse, Domestic Horses, Horse, Horses, Domestic
Synonyms :
| Horner's syndrome |
a pattern of symptoms occurring as a result of damage to nerves in the cervical region of the spine (drooping eyelids and constricted pupils and absence of facial sweating)
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| horny layer |
stratum corneum: the outermost layer of the epidermis consisting of dead cells that slough off
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| horripilation |
pilomotor reflex: reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation
출처: wordnet.princeton.edu/perl/webwn
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| horror |
intense and profound fear something that inspires dislike; something horrible; "the painting that others found so beautiful was a horror to him" repugnance: intense aversion
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| horse chestnut |
tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds buckeye: the inedible nutlike seed of the horse chestnut
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| hor | the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth |
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| hor | a specific layer or stratum of soil or subsoil in a vertical cross section of land |
| hor | something that is oriented horizontally |
| hor | parallel to or in the plane of the horizon or a base line |
| hor | gymnastic apparatus consisting of a bar fixed in a horizontal position for gymnastic exercises |
| hor | absorption into a single firm of several firms involved in the same level of production and sharing resources at that level |
| hor | absorption into a single firm of several firms involved in the same level of production and sharing resources at that level |
| hor | the maximum parallax observed when the celestial body is at the horizon |
| hor | a mechanical drawing of an object as if made by a plane cutting through it horizontally |
| hor | the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged |
| hor | the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged |
| hor | a flat surface at right angles to a plumb line |