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单词 planigram
释义

planigramn.

Brit. /ˈplanᵻɡram/, U.S. /ˈplænəˌɡræm/
Origin: Formed within English, by compounding. Etymons: plani- comb. form, -gram comb. form.
Etymology: < plani- comb. form + -gram comb. form. In sense 2 after planigraphy n.
1. Mathematics. In a system of joined pivoted rods: a point in a notional plane attached to one of the rods that cannot be brought into contact with any rod by manipulation of the system. Obsolete. rare.
ΚΠ
1875 J. J. Sylvester in Nature 15 July 215/1 The curve described by a point in one plane upon any other plane has been termed by me..a Graph, and..I have proposed to call the describing point the Gram. We may..understand by canonigrams describing points taken in the lines connecting the joints and their corresponding curves, canonigraphs; Grams lying outside these lines and their appurtenant Graphs may be termed Epipedograms and Epipedographs; or, if these names are found too long for use, Planigrams and Planigraphs.
2. Medicine. An image obtained by planigraphy; a tomogram. Now rare or disused.
ΘΚΠ
the world > health and disease > healing > diagnosis or prognosis > radiography or radiology > [noun] > an X-radiograph > using specific techniques
roentgenograph1905
pneumogram1921
kymogram1923
pneumograph1927
aerogram1935
tomograph1935
planigram1936
tomogram1936
laminagraph1938
photofluorograph1941
photofluorogram1942
orthoroentgenogram1946
pantomogram1954
lymphangiogram1955
orthopantomogram1959
panograph1961
cineradiograph1965
1936 Amer. Jrnl. Roentgenol. 36 577/1 Vallebona was able to make planigrams of skulls.
1958 Arch. Ophthalmol. 60 266/2 The ultrasonogram represents a horizontal section, or planigram, through a level of the eye.
1971 Amer. Jrnl. Roentgenol. 113 576/1 Since there is a constant difference between the fulcrum setting for the fluoroplanigram and conventional film planigram, the latter can be immediately obtained after the precise plane of interest has been selected from the fluoroscopic presentations.
1975 Science 19 Sept. 994/2 An ultrasonographic planigram is a scan of tissue about 0.5 mm thick.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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n.1875
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