Sentence examples for wheal from inspiring English sources
noun
A small raised swelling on the skin, often itchy, caused by a blow from a whip or an insect bite etc.
Urticaria features an area of central redness, on which is superimposed an irregular wheal, caused by local edema, and surrounded by a bright pink flare.
Localized fluid accumulation (edema) causes the development of a short-lived wheal associated with intense itching.
Called a wheal-and-flare reaction, it includes swelling, produced by the release of serum into the tissues (wheal), and redness of the skin, resulting from the dilation of blood vessels (flare).
The most recent reopening was that of the historic Wheal Jane tin mine in Cornwall all the way back in 1969, by the former FTSE 100 company Consolidated Goldfields.
Specific components of these substances are believed to give rise to an allergic reaction, which in turn produces skin lesions that may vary from a small itching wheal, or slightly elevated area of the skin, to large areas of inflamed skin covered by vesicles and crusted lesions.
Flying insects, such as flies, gnats, and mosquitoes, attack exposed body parts, each bite resulting in a single itchy wheal that generally subsides within hours.
In the skin, immediate hypersensitivity can result in skin eruptions or urticaria, characterized by wheals with redness.
The wheals are usually multiple and remain visible for 30 to 45 minutes.
Still other venoms produce the symptoms of an allergic reaction, resulting in wheals, blisters, and violent inflammation, often followed by death of tissue and muscle spasms.
Erythema multiforme is characterized by the sudden eruption of crops of red or violet flat spots, wheals, papules (small solid elevations), and vesicles (blisters), the characteristic lesions often having a concentric, or target, pattern; the skin on the palm of the hand and the mucous surfaces, especially the mouth and eyelids, are commonly involved.
Hives, also called urticaria, a hypersensitive skin reaction characterized by the sudden appearance of very itchy, slightly raised, smooth, flat-topped wheals and plaques that are usually redder or paler than the surrounding skin.
