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
Rash facts. 1  Rash is not a specific diagnosis. 2  Instead it means skin inflammation and discoloration that changes the way the skin looks. 3  Common rashes include eczema, poison ivy, hives, and heat rash. 4  Infections that cause rashes may be fungal, bacterial, parasitic, or viral.