A Lab color space is a color-opponent space with dimension L for lightness and a and b for the color-opponent dimensions, based on nonlinearly-compressed CIE XYZ color space ...
http://en.wikipedia.org/wiki/Lab_color_space

The Labrador Retriever (also Labrador, Labby or Lab for short), is one of several kinds of retriever, a type of gun dog. The Labrador is considered [citation needed] the most ...
http://en.wikipedia.org/wiki/Labrador_retriever

Home page of MIT Media Laboratory. ... What do you get when you cross a guitar and a Wii controller? A way to extend the guitar intuitively by mapping audio effects onto gestures.
http://www.media.mit.edu/

The alternative multidisciplinary art space in San Francisco showcasing local and international artists
http://www.thelab.org/

Lab manufactures Lock Pins (lock tumbler pins), Rekeying Kits (Repinning Kits) and Locksmith Tools for Locksmiths and Lock Companies worldwide. Lab also specializes in rebuilding ...
http://www.lab-lockpins.com/