crater(redirected from craterless)
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an excavated area surrounded by an elevated margin, such as is caused by ulceration.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
The most depressed, usually central portion of an ulcer.
Farlex Partner Medical Dictionary © Farlex 2012