Definition of "undercut"

undercut

/ˈʌndə(ɹ)kʌt/

noun
plural undercuts
1. A cut made in the lower part of something; the material so removed.
2. The notch cut in a tree to direct its fall when being felled.
3. The underside of a sirloin of beef; the fillet.
4. A hairstyle that is shaved or clipped short on the sides and kept long on the top.
5. A blow dealt upward.
6. (moldmaking) A section of a mold or pattern with negative draft angle
7. (motor racing) A pit stop strategy in which a driver seeks to gain an advantage over someone by pitting before them and using fresh tyres to make up time.
verb
third-person singular simple present undercuts, present participle undercutting, simple past and past participle undercut
1. To sell (something) at a lower price, or to work for lower wages, than a competitor.
  Quotations
  The fact that, to cover low tariffs on bulk commodities, the railways have to charge very high rates on high-value goods, such as manufactures, has provided road operators with a golden opportunity to undercut the railway.
  1959 November, J. N. Westwood, “The Railways of Canada”, in Trains Illustrated, page 555
2. To create an overhang by cutting away material from underneath.
3. To undermine.
  Quotations
  Though Bane’s sing-song voice gives his pronouncements a funny lilt, he doesn’t have any of the Joker’s deranged wit, and Nolan isn’t interested in undercutting his seriousness for the sake of a breezier entertainment.
  July 18 2012, Scott Tobias, AV Club The Dark Knight Rises
4. To strike a heavy blow upward.
adjective
not comparable
1. Produced by undercutting.
2. Designed so as to cut from the underside.
3. Having the parts in relief cut under.