by HowStuffWorks.com Contributors Home & Garden | Construction Planning. NEXT PAGENEXT. A prototype is a design tool used to help create a new product, much like a model. There are different kinds of prototypes; some are more like rough drafts and some are more like the final version.
Definition of rash - acting or done without careful consideration of the possible consequences; impetuous Definition of rash - acting or done without careful consideration of the possible consequences; impetuous
A rash indicates an abnormal change in skin color or texture. Rashes are usually caused by skin inflammation, which can have many causes. There are many types of rashes, including eczema, granuloma annulare, lichen planus, and pityriasis rosea. Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy.