seal

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Related to seals: Easter Seals

seal

(sēl),
1. A tight closure.
2. To effect a tight closure.

SEAL

Heart surgery A clinical trial–Simple & Effective Arterial Closure Study which evaluated the safety and efficacy of the Duett vascular sealing device

seal

Public health Any air- and/or water-tight closure on a product–blood components, medications intended to maintain a product sterilely until used by a consumer; products with broken seals should be discarded

staining, fluorescein 

The artificial coloration of tissue by fluorescein. Under ultraviolet illumination, it stains dead or degenerated corneal epithelial cells due to abrasions, old age or following inadequate contact lens fit, a yellowish-green colour. It also stains the tears, thus facilitating the evaluation of tear drainage or the blood flow through the retina and choroid when injected intravenously. Corneal staining resulting from contact lens wear may present in various shapes, locations, depths or severity. A very common form is punctate staining as appears in punctate epithelial keratitis. There may be arcuate stains located in different parts of the cornea, some inferiorly (called inferior epithelial arcuate lesions) or superiorly (called superior epithelial arcuate lesions, acronym: SEAL, or epithelial splitting), which usually do not give rise to symptoms and appear mainly with soft or silicone hydrogel lenses. A very severe form of staining is called epithelial plug. It is typically round in shape and represents a loss of the full thickness of the epithelium. Corneal staining resulting from contact lens wear typically disappears after cessation of contact lens wear. See fluorescein angiography; dye dilution test; fluorescein test.

seal

(sēl)
1. Tight closure.
2. To effect a tight closure.

seal,

n 1. something that firmly closes or secures.
2. a tight and perfect closure.
v 3. to keep shut, enclosed, or confined.
seal, border,
seal, double,
n a seal consisting of gutta-percha underneath another material such as temporary cement; used to close the coronal opening in a tooth during endodontic treatment.
seal, hermetic,
n perfect and absolute obliteration of all space within a tooth.
seal, peripheral,
seal, posterior palatal,
n the seal at the posterior border of a denture produced by displacing some of the soft tissue covering the palate by extra pressure developed in the impression or by scraping a groove along the posterior seal area in the cast on which the denture is to be processed.
seal, postpalatal,
n See seal, posterior palatal.

seal

1. a marine mammal; member of the suborder Pinnipedia. There are two major groups, the earless seals (family Phocidae) including many species, and the eared seals (family Otariidae) including sealions and fur seals. They are carnivorous and have four paddles which enable them to move on land and to swim.
2. a very dark brown coat color of cats, seen in brown (or sable) Burmese and on the extremities of seal-point Siamese and Colorpoint cats.

seal pox
see sealpox.

Patient discussion about seal

Q. HONEY Use honey to seal MRSA (METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS) wound.

A. honey has an antimicrobial activity due to it's acidity, osmotic power and hydrogen peroxide. about MRSA - there is a New Zealandic research about a type of honey that is effective against infections of MRSA. but it's only one research and another investigation is required.

More discussions about seal
References in classic literature ?
Now and then he would see a thin fin, like a big shark's fin, drifting along close to shore, and he knew that that was the Killer Whale, the Grampus, who eats young seals when he can get them; and Kotick would head for the beach like an arrow, and the fin would jig off slowly, as if it were looking for nothing at all.
And so they all came to the beaches where they had been born, and heard the old seals, their fathers, fighting in the rolling mist.
That night Kotick danced the Fire-dance with the yearling seals.
They came from the little village not half a mile from the sea nurseries, and they were deciding what seals they would drive up to the killing pens--for the seals were driven just like sheep--to be turned into seal-skin jackets later on.
Then he stepped near and the seals began to move, and Kerick headed them inland, and they never tried to get back to their companions.
Kotuko found the dogs fighting over a fresh-killed seal who was following the fish that a gale always disturbs.
They left five-and-twenty seal carcasses buried in the ice of the beach, all ready for use, and hurried back to their people.
The storm blew, the ice broke, and the seal swam in behind the fish that were frightened by the storm.
Seal, putting both her elbows on the table, and propping her chin on her hands, as Mary began to pour out tea.
Seal looked for a moment as though she could hardly believe her ears, and made a deprecating "tut-tut-tut" in her throat, looking alternately at Katharine and Mary, and shaking her head as she did so.
Seal fed on a bag of biscuits under the trees, whatever the weather might be, rather, Katharine thought, as though Mrs.
Seal, with the self-conscious guilt of a child owning some fault to its elders.