Vacuum extraction
noun
the removal of a fetus from the uterus or vagina via a suction device
Examples
Vacuum extraction involves attaching a suction cup to the baby’s head and then gently pulling to help ease the baby down the birth canal.
Read Also:
- Vacuum fluctuation
vacuum fluctuation A spontaneous, short-lived fluctuation in the energy level of a vacuum, as described by quantum field theory. Although these variations are violations of the law of conservation of energy, they are tolerated in quantum mechanics by virtue of the uncertainty principle. Such fluctuations are associated with virtual particles.
- Vacuum forming
noun 1. a process in which a sheet of warmed thermoplastic is shaped by placing it in a mould and applying suction
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noun 1. (printing) a machine from which the air is extracted in order to obtain close contact between the surfaces of two materials, e.g. the film and plate during platemaking
- Vacuum-gauge
noun 1. a device for measuring pressures below atmospheric pressure in the receiver of an air pump, in steam condensers, and the like. vacuum gauge noun 1. any of a number of instruments for measuring pressures below atmospheric pressure
- Vacuuming
noun, plural vacuums for 1, 2, 4–6, vacua [vak-yoo-uh] /ˈvæk yu ə/ (Show IPA), for 1, 2, 4, 6. 1. a space entirely devoid of matter. 2. an enclosed space from which matter, especially air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere […]