What is a prototype? 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. When you first come up with an idea for a new product, you'll probably sketch it out so you can show people what you're thinking of: This is one version of a prototype. But as time goes on, you'll want to make your drawing more detailed, especially if you're thinking about creating a complicated system.
Definition of sneeze. sneezed. ; sneezing. intransitive verb. : to make a sudden violent spasmodic audible expiration of breath through the nose and mouth especially as a reflex act.
1. an involuntary, sudden, violent, and audible expulsion of air through the mouth and nose. 2. to expel air in such a manner. Sneezing is usually caused by the irritation of sensitive nerve endings in the mucous membrane that lines the nose. Allergies, drafts of cold air, and even bright light can produce sneezing. It is a predominant sign in inclusion body rhinitis in piglets, atrophic rhinitis in older pigs, and feline rhinotracheitis.