Epsteins pearl
| horny | Of the nature or structure of horn. Synonym: corneous, keratic, keratinous, keratoid, keroid. (05 Mar 2000) |
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| horny cell | The dead keratin-filled squamous cell of the stratum corneum. Synonym: horny cell, keratinised cell. Origin: cornea, L. Fem. Of corneus, horny, + G. Kytos, cell (05 Mar 2000) |
| horny layer of epidermis | The outer layer of the epidermis, consisting of several layers of flat keratinised non-nucleated cells. Synonym: corneal layer of epidermis, horny layer of epidermis. (05 Mar 2000) |
| horny layer of nail | The outer, horny layer of the nail. Synonym: cornified layer of nail, horny layer of nail. (05 Mar 2000) |
| pearl | 1. <marine biology, zoology> A shelly concretion, usually rounded, and having a brilliant luster, with varying tints, found in the mantle, or between the mantle and shell, of certain bivalve mollusks, especially in the pearl oysters and river mussels, and sometimes in certain univalves. It is usually due to a secretion of shelly substance around some irritating foreign particle. Its substance is the same as nacre, or mother-of-pearl. Pearls which are round, or nearly round, and of fine luster, are highly esteemed as jewels, and compare in value with the precious stones. 2. Hence, figuratively, something resembling a pearl; something very precious. "I see thee compassed with thy kingdom's pearl." (Shak) "And those pearls of dew she wears." (Milton) 3. Nacre, or mother-of-pearl. 4. <marine biology> A fish allied to the turbot; the brill. 5. <ornithology> A light-coloured tern. 6. <zoology> One of the circle of tubercles which form the bur on a deer's antler. 7. A whitish speck or film on the eye. 8. A capsule of gelatin or similar substance containing some liquid for medicinal application, as ether. 9. A size of type, between agate and diamond. This line is printed in the type called pearl. Ground pearl. <zoology> A crystallized variety of dolomite, having a pearly luster. Pearl white. Basic bismuth nitrate, or bismuth subchloride; used chiefly as a cosmetic. A variety of white lead blued with indigo or Berlin blue. Origin: OE. Perle, F. Perle, LL. Perla, perula, probably fr. (assumed) L. Pirulo, dim. Of L. Pirum a pear. See Pear, and cf. Purl to mantle. (19 Mar 1998) |
| pearl-ash | <chemistry> A white amorphous or granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; hence The impure potassium carbonate obtained by leaching wood ashes, and evaporating the lye, or as a white crystalline pearl-ash. It has previously been an important source of potassium compounds, and previously used in making soap, glass, etc. Synonym: caustic potash. Source: Websters Dictionary (01 Mar 1998) |
| pearl cyst | <ophthalmology> A mass of epithelial cells introduced into the interior of the eye by a perforating injury. (21 Jun 2000) |
| pearl moss | Synonym: cartilage. 2. The plant Chondrus crispus, Fucus crispus, or Gigartina mamillosa (family Gigartinaceae); a demulcent in chronic and intestinal disorders. Synonym: carrageen, carragheen, Irish moss, pearl moss. Origin: G. Chondros, gristle (05 Mar 2000) |
| pearl necklace gallbladder | <radiology> Associated with the generalised form of adenomyomatosis findings: tiny extraluminal extension of contrast on oral cholecystogram, enhanced after contraction (12 Dec 1998) |
| pearl tumour | An obsolete term for cholesteatoma. (05 Mar 2000) |
| pearl-worker's disease | Inflammatory hypertrophy of the bones affecting grinders of mother-of-pearl. (05 Mar 2000) |
| gouty pearl | A concretion of sodium urate on the cartilage of the ear, occurring in the gouty. (05 Mar 2000) |
| mother-of-pearl | <zoology> The hard pearly internal layer of several kinds of shells, especially. Of pearl oysters, river mussels, and the abalone shells; nacre. See Pearl. Source: Websters Dictionary (01 Mar 1998) |
| squamous pearl | A focus of central keratinization within concentric layers of abnormal squamous cells; seen in squamous cell carcinoma. Synonym: epithelial nest, epithelial pearl, squamous pearl. (05 Mar 2000) |
| enamel pearl | A developmental anomaly in which there is a small nodule of enamel below the cementoenamel junction, usually at the bifurcation of molar teeth. Synonym: enamel drop, enamel nodule, enamel pearl. (05 Mar 2000) |
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