Pronunciation: bul′ă, -ē
- A fluid-filled blister greater than 1 cm in diameter appearing as a circumscribed area of separation of the epidermis from the subepidermal structure (subepidermal bulla) or as a circumscribed area of separation of epidermal cells (intraepidermal bulla) caused by the presence of serum, or occasionally by an injected substance.
- A bubblelike structure.
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Examples: glitazone, GI cocktail, etc.