from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A dry scab or slough formed on the skin as a result of a burn or by the action of a corrosive or caustic substance.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A dry, dark scab or scar, especially as a result of burning.
from the GNU version of the Collaborative International Dictionary of English
- n. A dry slough, crust, or scab, which separates from the healthy part of the body, as that produced by a burn, or the application of caustics.
- n. In Ireland, one of the continuous mounds or ridges of gravelly and sandy drift which extend for many miles over the surface of the country. Similar ridges in Scotland are called kames or kams.
from The Century Dictionary and Cyclopedia
- n. In pathology, a crust or scab on the skin, such as is occasioned by a burn or caustic application, and which sloughs off.
- n. See eskar.
- n. Same as slough, 2.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a dry scab formed on the skin following a burn or cauterization of the skin
On Aug. 25, a nursing home employee noted in a "skin condition report" that the toe was scabrous, swollen, contained pus and had developed black "eschar" -- dead tissue that's a sign of gangrene.
The caustic must not, therefore, be applied in these cases, until the inflammation has entirely subsided; but when there remains only a small superficial ulceration, the caustic may be passed lightly over the ulcerated surface to form an eschar which is to be defended by the gold-beater's skin; for the affection is then reduced to the state of a common superficial ulcer.
But externally, one may form another eschar considerably above the tendon at the armpit, but a little below the head of the humerus; and the skin must be burned fairly through, but it must not be made very deep, for fire is inimical to the nerves.
Phosphorus burns on the skin are deep and painful; a firm eschar is produced and is surrounded by vesiculation.
If they get burned, either from rolling into the fire when asleep, or from the flame catching the grass on which they lie (both of which are common accidents) they cover the part with a thin paste of kneaded clay, which excludes the air and adheres to the wound until it be cured, and the eschar falls off.
- Pustule that develops into a black eschar surrounded by vesicles and an inflamed area, with regional adenopathy.
During the progress of the cure a little excoriation formed round the eschar.
I removed the fungous by a pair of scissors and applied the lunar caustic to form an eschar.
On the next day I found the eschar last made complete, and I passed the caustic over the ulcer to the extent of three inches more.
On carefully making an incision into the centre of each eschar, a little fluid was evacuated.