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| to bark; yelp. |
| to spend time idly; loaf. |
1425–75; late Middle English < Middle French < Latin laesiōn- (stem of laesiō) injury, equivalent to Latin laes(us) (past participle of laedere to harm, equivalent to laed- verb stem + -tus past participle suffix, with -dt- > -s-) + -iōn- -ion
Based on the Random House Dictionary, © Random House, Inc. 2012.
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- Call for an appointment with your health care provider if you have a skin lesion that bleeds easily or that changes appearance.
- Once a suspicious lesion is found, a biopsy is needed to diagnose basal cell cancer.
- Note the presence of multiple colors within this melanoma lesion.
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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lesion
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lesion le·sion (lē'zhən)
n.
A wound or an injury.
A localized pathological change in a bodily organ or tissue.
An infected or diseased patch of skin.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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lesion
in physiology, a structural or biochemical change in an organ or tissue produced by disease processes or a wound. The alteration may be associated with particular symptoms of a disease, as when a gastric ulcer produces stomach pain, or it may take place without producing symptoms, as in the early stages of cancer. Certain lesions, such as the genital chancre of syphilis, are diagnostic of a particular disease, and early recognition of the physical or biochemical injury can help to prevent later, more serious manifestations of a disease; thus, the recognition and classification of disease lesions is a major part of pathology.
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