POSSUM

POSSUM
Pictures of Standard Syndromes and Undiagnosed Malformations; Physiological and Operative Severity Score for the Enumeration of Morbidity and Mortality [study]

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n.
a device that enables severely paralysed patients to use typewriters, adding machines, telephones, and a wide variety of other machines. Modern Possums are operated by micro-switches that require only the slightest movement in any limb. The original device worked by blowing and sucking a mouthpiece. The name derives from Patient-Operated Selector Mechanism (POSM).

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Pos·sum (posґəm) [Patient-Operated Selector Mechanism] trademark for a machine designed for the disabled by which, when breathed into in the correct manner, the individual can operate the telephone, ring bells, turn on the television, switch off a light, type a letter, or perform any of a number of other functions by no movement other than that involved in respiration.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Possum — Pos sum, n. [Shortened from opossum.] (Zo[ o]l.) An opossum. [Colloq. U. S.] [1913 Webster] {To play possum}, {To act possum}, to feign ignorance, indifference or inattention, with the intent to deceive; to dissemble; in allusion to the habit of… …   The Collaborative International Dictionary of English

  • possum — ► NOUN 1) a tree dwelling Australasian marsupial. 2) N. Amer. informal an opossum. ● play possum Cf. ↑play possum ORIGIN shortening of OPOSSUM(Cf. ↑opossum) …   English terms dictionary

  • possum — 1610s, shortened form of OPOSSUM (Cf. opossum). Phrase play possum is first recorded 1822 …   Etymology dictionary

  • possum — ☆ possum [päs′əm ] n. Informal OPOSSUM play possum to pretend to be asleep, dead, ill, unaware, etc.: an opossum may become motionless when endangered …   English World dictionary

  • Possum — Taxobox name = Possums image width = 240px image caption = Common Brushtail Possum ( Trichosurus vulpecula ) regnum = Animalia phylum = Chordata classis = Mammalia infraclassis = Marsupialia ordo = Diprotodontia subordo = Phalangeriformes subordo …   Wikipedia

  • Possum — Opossum Nom vernaculaire ou nom normalisé ambigu : Le terme « Opossum » s applique, en français, à plusieurs taxons distincts. Opossum …   Wikipédia en Français

  • Possum — Der Fuchskusu ist eine der als Possums bezeichneten Tierarten Als Possums werden eine Reihe von Beutelsäugern der Ordnung Diprotodontia aus dem australasischen Raum bezeichnet, namentlich ein Großteil oder auch alle Vertreter der Unterordnung… …   Deutsch Wikipedia

  • possum — /ˈpɒsəm / (say posuhm) noun 1. Also, Obsolete, opossum. any of many herbivorous, largely arboreal, Australian marsupials of the superfamily Phalangeroidea, especially of the genera Trichosurus, Pseudochirus and Petaurus, ranging in size from the… …  

  • possum — /pos euhm/, n. 1. opossum. 2. play possum, Informal. a. to feign sleep or death. b. to dissemble or pretend ignorance: The baseball broke the window, but the children played possum when asked who had thrown it. 3. Australian. any of various… …   Universalium

  • possum — stir the possum Deliberately cause controversy, especially in a public debate. The phrase was first recorded in 1900, but its origin is unknown. Some suggest it arose from a reversal of the American expression to play possum , which refers to the …   Australian idioms

  • possum — UK [ˈpɒs(ə)m] / US [ˈpɑsəm] noun [countable] Word forms possum : singular possum plural possums an opossum • play possum …   English dictionary

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