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单词 em quadrat
释义

> as lemmas

em quadrat
The square, formerly of the type m, used in typography as the unit for measuring and estimating the amount of printed matter in a line, page, etc. The em of pica is the standard. Also attributive, as em quad, em quadrat, a square quadrat n. (see also quots. 1927, 1967). Cf. M n. 4.
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society > communication > writing > written character > name of written character > [noun] > others
Bc1000
Dc1000
ellc1000
Fc1000
Sc1000
yogha1300
Pa1398
ess1540
tee1610
alif1727
cue1755
em1793
en1793
dee1795
double U1841
edh1846
wye1857
vee1883
gee1926
nut1940
kay1959
at sign1977
society > communication > printing > printed matter > arrangement or appearance of printed matter > [noun] > units of space in printing
M1683
n quadrat1683
em1793
en1793
1728 E. Chambers Cycl. at Quadrat There are Quadrats of divers Sizes, as m Quadrats, n Quadrats, &c. which are respectively of the Dimensions of such Letters.]
1793 in Stower Printer's Gram. (1808) xvii. 419 That em and en quadrats..be included.
1808 C. Stower Printer's Gram. xvii. 419 The ems and ens at the beginnings and ends of the lines not to be reckoned in the width.
1863 W. Blades Life & Typogr. W. Caxton II. iv. p. xliii When a ‘white’ line was wanted under a chapter head or over a colophon, em quadrats were ranged side by side for the purpose.
1864 Daily Tel. 3 Oct. [The printers' union] advanced its demands from forty-five cents to sixty cents per thousand ‘ems’.
1871 Amer. Encycl. Printing 309/2 Mutton Quad, a slang term, in English printing offices, for em quad.
1888 Encycl. Brit. at Typography The width of..pages..is expressed according to the number of ‘ems’, that is of a pica ‘m’—the square of the depth of pica..A page of 24 ems wide is equal to one of 4 inches.
1892 Academy 3 Sept. 199/3 (advt.) 49,000 American ems (equal to 98,000 English ens) were set in eight hours.
1927 R. B. McKerrow Introd. Bibliogr. i. ii. 13 Quads were no doubt usually square spaces, as broad as the height of a line. From the fact that the letter m (or M) used to be cast on a square body, such a square space is called an em-quad.
1967 E. Chambers Photolitho-offset ii. 12 Quads and spaces are the separation material used between letters and words. The em quad is the square of a given body size; the en quad is half the square width.
extracted from emn.
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