Heather MillsMills, Heath·er /mɪlz, ˈheðə $ -ər/ (1968-) a British woman who is the former wife of the musician Paul McCartney. She was a model before she lost part of her left leg in a traffic accident in 1993. She does work for charity organizations including those which help amputees, support animal rights, and want a ban on landmines. The court case about her divorce from McCartney received a lot of attention in the media.