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, also called dermatitis, is swelling (puffiness) or irritation of the skin. It might be red, itchy, dry, bumpy, scaly, crusty or blistered. Rashes are a symptom of many different medical conditions. Things that can cause a. rash include other diseases, irritating substances, allergies and your genetic makeup.