undercut


Also found in: Dictionary, Thesaurus, Financial, Encyclopedia, Wikipedia.

un·der·cut

(ŭn'dĕr-kŭt),
1. That portion of a tooth that lies between the survey line (height of contour) and the gingivae.
2. The contour of a cross-section of a residual ridge or dental arch that would prevent the insertion of a denture.
3. The contour of a flasking stone that interlocks in such a way as to prevent the separation of the parts.

un·der·cut

(ŭn'dĕr-kŭt)
1. That portion of a tooth that lies between the survey line (height of contour) and the gingivae.
2. The contour of a cross-section of a residual ridge or dental arch that would prevent the insertion of a denture.
3. The contour of a flasking stone that interlocks in such a way as to prevent the separation of the parts.

un·der·cut

(ŭn'dĕr-kŭt)
1. That portion of a tooth that lies between survey line (height of contour) and gingivae.
2. Contour of a cross-section of a residual ridge or dental arch that would prevent insertion of a denture.
3. Contour of a flasking stone that interlocks in such a way as to prevent separation of parts.
References in periodicals archive ?
The amount of undercut required to pull a molded sprue out of its bushing depends on no less than six different variables, many of which are not often taken into consideration during the mold-design stage:
This impression material will deform according to requirement during removal from an undercut, and reform accordingly later.
Furthermore, we were able to demonstrate the high potential for the joining of conventionally incompatible polymer combinations by form fit with a prestructuring of one joining partner with undercut structures.
Some people go for a more relaxed look by having the sides not shaved down as short as a traditional undercut, then pairing it with a messy, tousled top.
Designed around an undercut box-bob, the emphasis is on extreme contrasts; pushing haircutting techniques with precision but avant garde design.
The delicately designed undercut step in EvoStep brings the following benefits: Increase the fiber taking and holding capability or the carding power; improved fiber control; increase of the transfer ratio; and further benefits include a lower risk of fiber recycling, loading and melting.
The result, the investigation found, allowed the United States to undercut other biodiesel suppliers to Australia and to capture 15 percent of Australia's biodiesel market.
This led to the Supreme Court's Raich decision, a 63 ruling that employed a latitudinarian interpretation of the commerce clause, with even self-described originalist Antonin Scalia concurring that local cultivation and use of marijuana "undercuts" federal powers to regulate the interstate market.
President Barack Obama is warning that failure to ratify a new arms control treaty with Russia will undercut American leadership on scores of challenges it faces worldwide.
Indeed, Commission inquiries concluded that from July 2008 to June 2009, 'subsidised imports originating in the UAE sold in the EU undercut the Union industry's prices by 3.2%.
Pressure forming permits a large undercut ring to be fabricated around the edge of the base, eliminating an internal mounting ring in the dome.