â¢ SALTATION (noun) The noun SALTATION has 5 senses: 1. (geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface. 2. a mutation that drastically changes the phenotype of an organism or species. 3. an abrupt transition.
A CAPTCHA as you may well know is one of those annoying âType in the letters you see in the image aboveâ things you see on many website signup pages or comment sections. A CAPTCHA image is designed so that a human can read it without difficulty while a computer is unable to.
Click to get new image. When you access the San Diego Sheriff's Arrest Warrant website, you are asked to type in a series of letters that you see in an image. The image contains letters only and no numbers. If you can read the letters in the image, the web server assumes you are human because computers presumably cannot read image text. This feature is known as CAPTCHA.