hyalo- |
Glassy, hyalin; vitreous. Compare: vitreo-. Origin: G. Hyalos, glass (05 Mar 2000) |
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hyalobiuronic acid |
A disaccharide made up of d-glucuronic acid and N-acetyl-d-glucosamine in a b1,3 linkage; occurs in hyaluronic acid as the repeating unit. See figure under hyaluronic acid. (05 Mar 2000) |
hyalocapsular ligament |
<anatomy> Attachment of the vitreous body to the posterior surface of the lens of the eye. Synonym: ligamentum hyaloideo-capsulario. (05 Mar 2000) |
hyalocyte |
Synonym: vitreous cell. Origin: hyalo-+ G. Kytos, cell (05 Mar 2000) |
hyalogens |
Substances similar to mucoids that are found in many animal structures (e.g., cartilage, vitreous humor, hydatid cysts) and yield sugars on hydrolysis. (05 Mar 2000) |
hyalograph |
An instrument for tracing designs on glass. Origin: Gr. Glass + graph. Source: Websters Dictionary (01 Mar 1998) |
hyalography |
Art of writing or engraving on glass. Source: Websters Dictionary (01 Mar 1998) |
hyalohyphomycosis |
An infection caused by a fungus with hyaline (colourless) mycelium in tissue, e.g., species of Fusarium, Penicillium, and Scopulariopsis; circumstances for infections usually involve a decrease in body resistance due to surgery, indwelling catheters, steroid therapy, or immunosuppressive drugs or cytotoxins. Origin: hyalo-+ G. Hyphe, web, + mykes, fungus, + -osis, condition (05 Mar 2000) |
hyaloid |
<anatomy> Resembling glass; vitriform; transparent; hyaline; as, the hyaloid membrane, a very delicate membrane inclosing the vitreous humor of the eye. Origin: Gr. Glassy, transparent; glass + appearance: cf. F. Hyaloide. Source: Websters Dictionary (01 Mar 1998) |
hyaloid artery |
<anatomy, artery> The terminal branch of the primitive ophthalmic artery, which forms in the embryo an extensive ramification in the primary vitreous and a vascular tunic around the lens; by 81/2 months, these vessels have atrophied almost completely, but a few persistent remnants are evident entoptically as muscae volitantes. Synonym: arteria hyaloidea. (05 Mar 2000) |
hyaloid body |
The transparent gel that fills the inner portion of the eyeball between the lens (lens, crystalline) and the retina. (12 Dec 1998) |
hyaloid canal |
A minute canal running through the vitreous from the discus nervi optici to the lens, containing in foetal life a prolongation of the central artery of the retina, the hyaloid artery. See: vitreous, hyaloid artery. Synonym: canalis hyaloideus, central canal of the vitreous, Cloquet's canal, Stilling's canal. (05 Mar 2000) |
hyaloid fossa |
A depression on the anterior surface of the vitreous body in which lies the lens. Synonym: fossa hyaloidea, lenticular fossa, patellar fossa of vitreous. (05 Mar 2000) |
hyaloid membrane |
A transparent homogeneous acellular layer between the substantia propria and the endothelial layer of the cornea; considered to be a highly developed basement membrane. Synonym: lamina limitans posterior corneae, membrana vitrea, Descemet's membrane, Duddell's membrane, entocornea, hyaloid membrane, lamina elastica posterior, limiting layers of cornea, membrana hyaloidea, posterior elastic layer, tunica vitrea, vitreous membrane. (05 Mar 2000) |
hyaloideoretinal degeneration |
Progressive liquefaction and destruction of the vitreous humor with grayish-white preretinal membranes, myopia, cataract, retinal detachment, and hyper-and hypopigmentation; autosomal dominant inheritance. Synonym: Wagner's disease, Wagner's syndrome. (05 Mar 2000) |