Necking can refer to: *

Making out Making out is a term of American origin dating back to at least 1949, and is used to refer to kissing, including extended French kissing or heavy kissing of the neck (called ''necking''), or to acts of non-penetrative sex such as heavy petti ...

, a term for heavy kissing of the neck or petting of that area *

Necking (engineering) Necking, in engineering or materials science, is a mode of tensile deformation where relatively large amounts of strain localize disproportionately in a small region of the material. The resulting prominent decrease in local cross-sectional area p ...

, the process by which a ductile material deforms under tension forming a thin ''neck'' *

Necking (electronics) In printed circuit boards, teardrops are typically drop-shaped features at the junction of vias (''teardrop vias'') or contact pads (''teardrop pads'') and traces (''teardrop traces''). The main purpose of teardrops is to enhance structural ...

, thinning of traces in PCB layouts * Necking, a behavior of giraffes * Necking up or necking down, methods of modifying a firearm cartridge to make a

wildcat cartridge A wildcat cartridge, often shortened to wildcat, is a custom cartridge for which ammunition and/or firearms are not mass-produced. These cartridges are often created in order to optimize a certain performance characteristic (such as the power, s ...

or a new production cartridge (e.g. the US .60 caliber T17 round being shortened and necked up to create the 20×102 mm

M61 Vulcan The M61 Vulcan is a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon which fires rounds at an extremely high rate (typically 6,000 rounds per minute). The M61 and its ...

cannon cartridge)

See also