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 drug rash (drug eruption), also known as a drug reaction, is a skin condition caused by a medication. A drug rash can appear in many forms, and any medication can cause a drug rash. Drug rashes can appear on people of all ages, all races, and of both sexes.