dropoutn.

Forms: Also drop-out.

Etymology: to drop out at drop v. Phrasal verbs.

1. Rugby. A drop-kick made from within the defending side's twenty-five-yard line in order to restart play after the ball has gone dead.

ΘΚΠ

society > leisure > sport > types of sport or game > ball game > football > rugby football > [noun] > types of kick or ball

drop1845

drop-kick1857

punt-out1861

free kick1862

poster1862

goal kick1870

dropout1882

touch kick1887

touch-finder1898

fly-kick1906

grubber kick1950

grub-kick1951

tap-kick1960

up and under1960

chip kick1965

Garryowen1965

box kick1972

chip and chase1976

1882 Field 28 Jan. The drop out was well returned, and some good drop-kicking took place.

1896 Laws of Football 3 Drop-out is a drop-kick from within 25 yards of the kicker's goal line.

1896 Durham Univ. Jrnl. 21 Mar. 69 The drop-out was well followed up.

1905 Westm. Gaz. 12 Dec. 9/2 From the drop-out Cambridge began an attack.

1960 E. S. Higham & W. J. Higham High Speed Rugby xiii. 157 The kick~off, drop-out, penalty and free kick.

2. A person who ‘drops out’ (see to drop out 2 at drop v. Phrasal verbs), esp. from a course of study or from society; also, the act of withdrawing. Also attributive. colloquial (originally U.S.).

ΘΚΠ

the world > action or operation > failure or lack of success > [noun] > one who or that which is unsuccessful > one who is a failure

botch1769

non-starter1839

schlemiel1868

also-ran1896

rinky-dink1900

flivver1915

wash-out1918

jabroni1919

bust1922

blowout1925

dropout1930

zilch1933

sad sack1943

loser1955

society > education > learning > learner > college or university student > [noun] > drop-out

dropout1930

1930 Sat. Evening Post 1 Mar. 110/2 The drop-outs are usually those with inferior mental capacity.

1960 Times 21 Nov. (Canada Suppl.) p. xviii/4 The bored students—mostly boys—and the ‘drop outs’.

1962 Guardian 19 Jan. 8/5 The brilliant woman..becomes an embarrassing statistic in the academic ‘drop-out’ rate... Dr. Bunting was a ‘drop-out’ for six years when her children were young.

1966 Listener 29 Sept. 454/3 The older teachers are resigned to the low standards and the high rate of drop-out.

1967 New Statesman 15 Dec. 838/2 An international gathering of misfits and drop-outs, smoking pot and meditating in the Buddhist temples.

1970 New Society 5 Feb. 231/3 He seems to imagine that, with the exception of the drop-outs, the working class has been entirely absorbed in ‘co-operative economic production and consenting political citizenship’.

1971 Brit. Med. Bull. 27 5/1 Experience suggests a high drop-out rate for those being treated.

3. Photography. The elimination of highlight dots from part of a half-tone negative or plate; also, a half-tone having such an area eliminated, or the area itself. Also attributive.

ΘΚΠ

society > leisure > the arts > visual arts > photography > photographic processes > [noun] > other processes

anthotype1843

blacking up1866

spotting1867

squeegeeing1892

photofinishing1916

dropout1948

prescreening1956

1948 L. Flader & J. S. Mertle Mod. Photoengraving p. xxi/2 Dropout, a highlight halftone negative or printing plate; ‘dropping-out’ is the elimination of highlight dot formations.

1967 R. R. Karch & E. J. Buber Graphic Arts Procedures: Offset Processes v. 179 The drop-out halftone..is made where it is desirable to eliminate the highlight background of an illustration.

1968 Gloss. Terms Offset Lithogr. Printing (B.S.I.) 11 Drop-out, the areas of a picture which are clear of printing image.

1968 Gloss. Terms Offset Lithogr. Printing (B.S.I.) 17 Drop-out mask, a photographic mask of sufficient density and contrast to separate non-printing areas from the first printing tones.

4. In tape recording, a momentary decrease in the amplitude of the recorded signal due to a flaw in the tape; also, such a flaw.

ΚΠ

1955 Jrnl. Audio Engin. Soc. 3 31 Tape squeal, sticking, and level variations have been caused by deposits on the head due to the shearing of imperfections in the oxide. Because of the effect of level variation in the computer field, the latter phenomenon has generally been referred to as ‘dropout’.

1958 Engineering 7 Mar. 310/2 When the signal amplitude falls below this limit, faulty reproduction of the signal occurs. This is called ‘drop-out’.

1962 A. Nisbett Technique Sound Studio iv. 85 Where there is a slight flaw, such as a drop-out, making a simple joint (and removing the flawed scrap of tape) will save time.

1967 D. F. Eldridge in C. B. Pear Magn. Recording iii. 101 Once the first permanent dropout is formed, additional dropouts in increasing numbers will follow rapidly.

Draft additions 1993

2. Cycling. Either of two U-shaped slots at the end of a fork or stay, made to receive the axle and enabling the wheel to be changed rapidly or its position adjusted. Usually in plural.

ΘΚΠ

society > travel > means of travel > a conveyance > vehicle > vehicle propelled by feet > [noun] > cycle > parts and equipment of cycles > frame and parts of

frame1869

fork1871

headpiece1877

head1881

frameset1899

dropout1923

crossbar1966

1923 Cycling Man. (ed. 5) x. 55 (caption) An example of a straight drop-out (The Allun).

1973 R. J. Way Bicycle 37 (caption) Campagnolo quick-release hub, and rear drop-outs.

1986 Bicycle July 27/2 In an ideal world, everyone would have vertical drop-outs; provided the rear end is true, the wheel should slip in and out with no need for adjustment in a matter of seconds.

This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2021).

单词	dropout
释义	dropoutn. Forms: Also drop-out. Etymology: to drop out at drop v. Phrasal verbs. 1. Rugby. A drop-kick made from within the defending side's twenty-five-yard line in order to restart play after the ball has gone dead. ΘΚΠ society > leisure > sport > types of sport or game > ball game > football > rugby football > [noun] > types of kick or ball drop1845 drop-kick1857 punt-out1861 free kick1862 poster1862 goal kick1870 dropout1882 touch kick1887 touch-finder1898 fly-kick1906 grubber kick1950 grub-kick1951 tap-kick1960 up and under1960 chip kick1965 Garryowen1965 box kick1972 chip and chase1976 1882 Field 28 Jan. The drop out was well returned, and some good drop-kicking took place. 1896 Laws of Football 3 Drop-out is a drop-kick from within 25 yards of the kicker's goal line. 1896 Durham Univ. Jrnl. 21 Mar. 69 The drop-out was well followed up. 1905 Westm. Gaz. 12 Dec. 9/2 From the drop-out Cambridge began an attack. 1960 E. S. Higham & W. J. Higham High Speed Rugby xiii. 157 The kick~off, drop-out, penalty and free kick. 2. A person who ‘drops out’ (see to drop out 2 at drop v. Phrasal verbs), esp. from a course of study or from society; also, the act of withdrawing. Also attributive. colloquial (originally U.S.). ΘΚΠ the world > action or operation > failure or lack of success > [noun] > one who or that which is unsuccessful > one who is a failure botch1769 non-starter1839 schlemiel1868 also-ran1896 rinky-dink1900 flivver1915 wash-out1918 jabroni1919 bust1922 blowout1925 dropout1930 zilch1933 sad sack1943 loser1955 society > education > learning > learner > college or university student > [noun] > drop-out dropout1930 1930 Sat. Evening Post 1 Mar. 110/2 The drop-outs are usually those with inferior mental capacity. 1960 Times 21 Nov. (Canada Suppl.) p. xviii/4 The bored students—mostly boys—and the ‘drop outs’. 1962 Guardian 19 Jan. 8/5 The brilliant woman..becomes an embarrassing statistic in the academic ‘drop-out’ rate... Dr. Bunting was a ‘drop-out’ for six years when her children were young. 1966 Listener 29 Sept. 454/3 The older teachers are resigned to the low standards and the high rate of drop-out. 1967 New Statesman 15 Dec. 838/2 An international gathering of misfits and drop-outs, smoking pot and meditating in the Buddhist temples. 1970 New Society 5 Feb. 231/3 He seems to imagine that, with the exception of the drop-outs, the working class has been entirely absorbed in ‘co-operative economic production and consenting political citizenship’. 1971 Brit. Med. Bull. 27 5/1 Experience suggests a high drop-out rate for those being treated. 3. Photography. The elimination of highlight dots from part of a half-tone negative or plate; also, a half-tone having such an area eliminated, or the area itself. Also attributive. ΘΚΠ society > leisure > the arts > visual arts > photography > photographic processes > [noun] > other processes anthotype1843 blacking up1866 spotting1867 squeegeeing1892 photofinishing1916 dropout1948 prescreening1956 1948 L. Flader & J. S. Mertle Mod. Photoengraving p. xxi/2 Dropout, a highlight halftone negative or printing plate; ‘dropping-out’ is the elimination of highlight dot formations. 1967 R. R. Karch & E. J. Buber Graphic Arts Procedures: Offset Processes v. 179 The drop-out halftone..is made where it is desirable to eliminate the highlight background of an illustration. 1968 Gloss. Terms Offset Lithogr. Printing (B.S.I.) 11 Drop-out, the areas of a picture which are clear of printing image. 1968 Gloss. Terms Offset Lithogr. Printing (B.S.I.) 17 Drop-out mask, a photographic mask of sufficient density and contrast to separate non-printing areas from the first printing tones. 4. In tape recording, a momentary decrease in the amplitude of the recorded signal due to a flaw in the tape; also, such a flaw. ΚΠ 1955 Jrnl. Audio Engin. Soc. 3 31 Tape squeal, sticking, and level variations have been caused by deposits on the head due to the shearing of imperfections in the oxide. Because of the effect of level variation in the computer field, the latter phenomenon has generally been referred to as ‘dropout’. 1958 Engineering 7 Mar. 310/2 When the signal amplitude falls below this limit, faulty reproduction of the signal occurs. This is called ‘drop-out’. 1962 A. Nisbett Technique Sound Studio iv. 85 Where there is a slight flaw, such as a drop-out, making a simple joint (and removing the flawed scrap of tape) will save time. 1967 D. F. Eldridge in C. B. Pear Magn. Recording iii. 101 Once the first permanent dropout is formed, additional dropouts in increasing numbers will follow rapidly. Draft additions 1993 2. Cycling. Either of two U-shaped slots at the end of a fork or stay, made to receive the axle and enabling the wheel to be changed rapidly or its position adjusted. Usually in plural. ΘΚΠ society > travel > means of travel > a conveyance > vehicle > vehicle propelled by feet > [noun] > cycle > parts and equipment of cycles > frame and parts of frame1869 fork1871 headpiece1877 head1881 frameset1899 dropout1923 crossbar1966 1923 Cycling Man. (ed. 5) x. 55 (caption) An example of a straight drop-out (The Allun). 1973 R. J. Way Bicycle 37 (caption) Campagnolo quick-release hub, and rear drop-outs. 1986 Bicycle July 27/2 In an ideal world, everyone would have vertical drop-outs; provided the rear end is true, the wheel should slip in and out with no need for adjustment in a matter of seconds. This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2021). < n.1882
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