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 ?
And Kotick curled up his mustache (it was a beauty) and said, "I am the only white seal that has ever been born on the beaches, and I am the only seal, black or white, who ever thought of looking for new islands.
Curiously enough, there was another seal who thought that she would put off marrying till the next year, and Kotick danced the Fire-dance with her all down Lukannon Beach the night before he set off on his last exploration.
They were like no walrus, sea lion, seal, bear, whale, shark, fish, squid, or scallop that Kotick had ever seen before.
He began to think of the seal he had left behind him, but though he was in a hurry to go back to Novastoshnah, he thoroughly explored the new country, so that he would be able to answer all questions.
No one but a sea cow or a seal would have dreamed of there being such a place, and when he looked back at the cliffs even Kotick could hardly believe that he had been under them.
He was six days going home, though he was not swimming slowly; and when he hauled out just above Sea Lion's Neck the first person he met was the seal who had been waiting for him, and she saw by the look in his eyes that he had found his island at last.
Oh, if you're trying to back out, of course I've no more to say," said the young seal with an ugly chuckle.
Kotick roared in answer, and old Sea Catch waddled in with his mustache on end, blowing like a locomotive, while Matkah and the seal that was going to marry Kotick cowered down and admired their men-folk.
He was not a white seal any more, but red from head to tail.
Despite their antiquity and widespread modern use, quite a few misconceptions, poor practices, and misleading terminology remain when it comes to seals and seal use.
Elastomer seals and their wear can tell equipment maintenance engineers a lot about how process equipment is performing.
The investigators used burst testing and dye penetration to assess how the seals performed.