pearl (redirected from Natural pearl)

pearl (perl)

1. a small rounded mass or body.

2. a rounded mass of tough sputum as seen in the early stages of an attack of bronchial asthma.

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epidermic pearls , epithelial pearls rounded concentric masses of epithelial cells found in squamous cell carcinomas.

Laënnec's pearls  soft casts of the smaller bronchial tubes expectorated in bronchial asthma.

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pearl (pûrl)

n.

1. A small sphere of thin glass containing amyl nitrite or other volatile fluid, designed to be crushed, as in a handkerchief, so that its contents can be inhaled.

2. Any of a number of small tough masses of mucus occurring in the sputum in asthma.

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pearl

1. a small medicated granule, or a glass globule with a single dose of volatile medicine, as amyl nitrite.

2. a rounded mass of tough sputum, as seen in the early stages of an attack of bronchial asthma.

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pearl disease

calcification of the nodular lesions of pleural tuberculosis in cattle.

enamel pearl

small rounded masses of enamel adherent to the dentine of a tooth.

epidermic p's

rounded concentric masses of epithelial cells found in certain papillomas and epitheliomas and as epithelial remnants of the dental lamina in the gingiva and jaws where they may give rise to cysts and tumors. Called also epithelial pearls.

epithelial p's

see epidermic pearls (above).

pearl millet

see pennisetumamericanum.

squamous pearl

see horn pearls.