photoplethysmographyn.
/ˌfəʊtəʊplɛθɪzˈmɒɡrəfi/, U.S. /ˈˌfoʊdoʊˌplɛθɪzˈmɑɡrəfi/ Medicine.
Measurement of blood flow or blood pressure by optical means (typically involving measurement of changes in the transmission or scattering of light created by blood flow in a part of the body).
ΚΠ
1962 Acta Physiologica et Pharmacologica Neerlandica 10 378 Photoplethysmography is a modification of plethysmography frequently used for clinical purposes.
1969 Israel Jrnl. Med. Sci. 5 534 (title) The application of photoplethysmography to the recording of Valsalva maneuver responses.
1989 Jrnl. Psychopharmacol. 3 190/1 Heart rate (photoplethysmography). A small photometric transducer was attached to the subject's finger.
2003 Jrnl. Neurol. Sci. 216 17 The second derivative of the fingertip photoplethysmography waveform..is now considered a useful tool for evaluating peripheral circulation.
This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1962- point of purchase
- point of reference
- point of reflection
- point of refraction
- point of repose
- point of retrogression
- point of sale
- point of saturation
- point of sight
- point of station
- point of the compass
- point of use
- point of view
- point of vision
- point of war
- point out
- point pair
- point paper
- point particle
- point people
- point percy at the porcelain
- point person
- point persons
- point plain
- point pointed