plethysmograph

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“
A plethysmograph was used to measure changes in penile circumference while the patient imagined shrinkage conditions, sexually arousing images and neutral stimuli … whilst describing an occasion when he was bicycling in cold weather and had felt his penis was shrinking, the plethysmograph recording showed fluctuations in penile circumference below the baseline.

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Definitions (7)

Toggle American Heritage definitions American Heritage Dictionary (1)

  1. noun An instrument that measures variations in the size of an organ or body part on the basis of the amount of blood passing through or present in the part.

Toggle Century definitions Century Dictionary (4)

Toggle GNU Webster definitions GNU Webster's 1913 (1)

Toggle WordNet definitions WordNet (1)

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Examples (28)

  • A plethysmograph was used to measure changes in penile circumference while the patient imagined shrinkage conditions, sexually arousing images and neutral stimuli … whilst describing an occasion when he was bicycling in cold weather and had felt his penis was shrinking, the plethysmograph recording showed fluctuations in penile circumference below the baseline. —  gimcrack hospital (PG)
  • Parkview Huntington also has purchased a plethysmograph, which is used to measure lung capacity. —  Home
  • One of the curious results, though, was that not only do men and women differ in the specificity of stimuli that induce arousal, but women's brains (measured by self-reporting) and women's bodies (measured by plethysmograph) don't agree - vaginal arousal was measured when subjects saw video clips of mating bonobos and a variety of different sexual situations, while at the same time they reported a lack of interest. —  Pharyngula
  • And for the male participants, the subjective ratings on the keypad matched the readings of the plethysmograph. —  Pharyngula
  • Each participant then agreed to attach a penile plethysmograph used to measure erectile responses to sexual stimuli showed significant engorgement to the straight and lesbian porn and their subjective ratings of arousal matched their penile plethsymograph only the homophobic men showed a significant increase in penile circumference in response to the gay male porn: —  Clipmarks | Live Clips
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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Greek plēthusmos, increase (from plēthūnein, to increase, from plēthūs, quantity, from plēthein, to be full; see pelə-1 in Indo-European roots) + -graph.

Toggle Century etymologies Century Dictionary (1)

  1. from Greek πληθυσμός, increasing, enlargement (from πληθύειν, be or become full, πληθύνειν, make full, from πλη̄θος,πληθύσ, σ2, fullness), + γράφειν, write.
 

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/pləˈθɪsməgræf/
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