| suction | The act or process of sucking; the act of drawing, as fluids, by exhausting the air. Suction chamber, the chamber of a pump into which the suction pipe delivers. Suction pipe, Suction valve, the induction pipe, and induction valve, of a pump, respectively. Suction pump, the common pump, in which the water is raised into the barrel by atmospheric pressure. Origin: L. Sugere, suctum, to suck; cf. OF. Suction. See Suck. Source: Websters Dictionary (01 Mar 1998) |
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| suction cup | One of the cupping glasses of various shapes, formerly used to produce local hyperaemia according to Bier's method. Wet cup, a cupping glass formerly applied to a part previously scarified or incised to draw and remove blood. (05 Mar 2000) |
| suction drainage | Closed drainage of a cavity, with a suction apparatus attached to the drainage tube. (05 Mar 2000) |
| suction ophthalmodynamometer | An ophthalmodynamometer with a suction disk which increases ocular pressure during ophthalmoscopic observation of the retinal artery. (05 Mar 2000) |
| suction plate | In dentistry, a plate held in place by atmospheric pressure. (05 Mar 2000) |
| perilimbal suction cup | A device for increasing intraocular pressure by impeding circulation and aqueous humor flow from the eye. (05 Mar 2000) |
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| Wangensteen suction | A modified siphon that maintains constant negative pressure, used with a duodenal tube for the relief of gastric and intestinal distention. Synonym: Wangensteen tube. (05 Mar 2000) |
| posttussis suction sound | A sound produced by the falling back of a drop of mucus or pus into a pulmonary cavity after the latter has been emptied by coughing. (05 Mar 2000) |
| posttussive suction | A suction sound heard on auscultation over a pulmonary cavity at the end of a cough. (05 Mar 2000) |