Ultrabooks

Part of speech: noun

Definitions

1. A class of slim laptops that balances high functionality with ease of transport while offering strong performance and extended battery longevity
2. Lightweight and efficient portable computers that prioritize both speed and design, making them perfect for users who need mobility alongside power
3. Computers designed to be exceptionally slim and light while maintaining fast processing and long battery life

Etymology: "Ultrabooks" is the plural of "ultrabook", a term formed from the prefix "ultra-" meaning "beyond" or "extremely", combined with "book", a shortened form of "notebook computer". The name follows the same logic as the older "notebook", which was itself a label for a laptop small enough to resemble a paper notebook. The "ultra-" element is a Latin prefix, from "ultra" meaning "beyond", which English has used for centuries in words like "ultraviolet". Attached to "book", it signals a machine pushed past the standard laptop in thinness and portability. Because "ultrabook" was built directly from these two English parts, its meaning can be read straight from the word itself: a notebook computer taken to an extreme.