penetrametern.

Brit.

/pɛnᵻˈtramᵻtə/, U.S.

/ˌpɛnəˈtrɑmədər/

Origin: Formed within English, by compounding. Etymons: penetration n., -meter comb. form².

Etymology: < penetra- (in penetration n.) + -meter comb. form². Compare French pénétratomètre (1906 in Belot). Compare slightly earlier penetrometer n. 2.

An instrument for determining the wavelength, intensity, or total received dose of X-rays by measuring photographically their transmission through layers of metal of known thickness; = penetrometer n. 2.

ΘΚΠ

the world > health and disease > healing > diagnosis or prognosis > radiography or radiology > [noun] > equipment used in

fluoroscope1893

photofluoroscope1896

skiascope1896

fluorimeter1898

stethendoscope1899

roentgenoscope1905

penetrometer1907

penetrameter1912

roentgenkymograph1914

stereofluoroscope1932

tomograph1935

kymograph1936

phototimer1942

photoscope1944

pantomograph1954

orthopantomograph1959

panograph1961

1912 J. M. Martin Pract. Electro-therapeutics xiv. 242 Holzknecht's chromoradiometer, Walter's or Benoist's skiameter or penetrameter will be of service in determining the amount of radiance given off from the tube.

1950 Engineering 7 Apr. 373/2 A penetrameter in steps of 0·010 in., with holes in each step, to calibrate the X-ray film.

1985 L. C. Love Princ. Metall. iii. 115 So that the image quality may be verified, a device called a penetrameter is placed on another section of metal equivalent in thickness to the workpiece.

1994 W. Afr. Jrnl. Med. 13 24 A simple penetrameter technique which is based on the transmission of a hardened x-ray beam through an aluminium step wedge and reference discs simultaneously was used.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	penetrameter
释义	penetrametern. Brit. /pɛnᵻˈtramᵻtə/, U.S. /ˌpɛnəˈtrɑmədər/ Origin: Formed within English, by compounding. Etymons: penetration n., -meter comb. form². Etymology: < penetra- (in penetration n.) + -meter comb. form². Compare French pénétratomètre (1906 in Belot). Compare slightly earlier penetrometer n. 2. An instrument for determining the wavelength, intensity, or total received dose of X-rays by measuring photographically their transmission through layers of metal of known thickness; = penetrometer n. 2. ΘΚΠ the world > health and disease > healing > diagnosis or prognosis > radiography or radiology > [noun] > equipment used in fluoroscope1893 photofluoroscope1896 skiascope1896 fluorimeter1898 stethendoscope1899 roentgenoscope1905 penetrometer1907 penetrameter1912 roentgenkymograph1914 stereofluoroscope1932 tomograph1935 kymograph1936 phototimer1942 photoscope1944 pantomograph1954 orthopantomograph1959 panograph1961 1912 J. M. Martin Pract. Electro-therapeutics xiv. 242 Holzknecht's chromoradiometer, Walter's or Benoist's skiameter or penetrameter will be of service in determining the amount of radiance given off from the tube. 1950 Engineering 7 Apr. 373/2 A penetrameter in steps of 0·010 in., with holes in each step, to calibrate the X-ray film. 1985 L. C. Love Princ. Metall. iii. 115 So that the image quality may be verified, a device called a penetrameter is placed on another section of metal equivalent in thickness to the workpiece. 1994 W. Afr. Jrnl. Med. 13 24 A simple penetrameter technique which is based on the transmission of a hardened x-ray beam through an aluminium step wedge and reference discs simultaneously was used. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1912
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