instantaneousadj.

/ɪnstənˈteɪniːəs/

Etymology: < Latin type *instāntāneus , after mōmentāneus (probably in medieval or modern Latin: compare French instantané , 1734 in Hatzfeld & Darmesteter), < instānt-em instant n.; see -eous suffix. Compare momentaneous, simultaneous.

a. Occurring or operating in an instant; done, completed, or reaching completion without any perceptible lapse of time.

ΘΚΠ

the world > time > duration > shortness or brevity in time > [adjective] > instantaneous

instantany1633

unmomentary1635

instantaneal1644

instantaneous1651

touch and go1682

presto1767

snappy1872

overnighta1911

durationless1919

split-second1946

on the spot1960

1651 R. Baxter Plain Script. Proof Infants Church-membership & Baptism 194 Justification is a continued Act, and not any Instantaneous act.

1657 T. Reeve God's Plea for Nineveh 29 God's knowledge is instantaneous.

1737 J. Thomson To Mem. Ld. Talbot 27 His Reason saw, With instantaneous View, the Truth of Things.

1822 T. Webster Imison's Elem. Sci. & Art (new ed.) I. 462 The motion of electricity..is so rapid, that it appears to be instantaneous.

1878 W. E. H. Lecky Hist. Eng. 18th Cent. I. i. 30 The effect on the English nation was instantaneous.

b. Photography. Applied to an exposure whose duration is brief and predetermined by means of a shutter mechanism; originally applied to those sufficiently brief for a moving object to be photographed (in contrast to the time exposures that were usual), and later to those for which the camera may be held in the hand (see quots.). Also transferred, applied to a shutter designed for taking such exposures, a photograph taken with one, etc. Now chiefly Historical.

ΘΚΠ

society > leisure > the arts > visual arts > photography > [adjective] > types or methods generally

tithonographic1842

instantaneous1851

ferrotype1857

telephotographic1892

telephoto1893

telephotal1904

tabletop1914

time-lapse1926

multiflash1939

synchro-sunlight1940

tele1954

lowlight1984

1851 Athenæum 6 Dec. 1286/2 (heading) On the production of instantaneous photographic images.

1858 T. Sutton & J. Worden Dict. Photogr. 229 Photographs obtained in a fractional part of a second of time are said to be instantaneous.

1867 T. Sutton & G. Dawson Dict. Photogr. 156 Mr. England and others use a guillotine sort of shutter, with a slot across it, which falls immediately in front of the sensitive plate... In some respects this is the best instantaneous shutter that has yet been devised.

1884 Gaiety Theatre Programme Oct. in L. de Vries Victorian Advts. (1968) 99/3 Superior Sets, comprising..Rectilinear Lens, with Instantaneous Shutter, suitable for taking instantaneous pictures of yachts sailing.

1891 W. E. Woodbury Encycl. Photogr. 356 Instantaneous dry plates are those coated with a very highly-sensitive emulsion that will become sufficiently impressed by the rapid exposure of the image upon it. An instantaneous lens is one that admits a large amount of actinic light.

1891 W. E. Woodbury Encycl. Photogr. 357 Instantaneous Photography.—In the very earliest days of photography this term was applied to what would now be considered very slow work indeed. We now usually apply this term when the exposure does not exceed one second.

1902 Encycl. Brit. XXXI. 698/2 It [sc. an efficient shutter] should be adjustable for variable instantaneous and for prolonged or ‘time’ exposures.

1939 W. D. Emanuel & F. L. Dash All-in-one Camera-bk. 33 It is usual to divide the long series of commonly used exposures into two parts. Exposures of 1/50 or 1/100 second or less belong to the instantaneous group, whereas the slower shutter speeds, such as 1/10 or 1/5 second, and so on, count as time exposures.

1939 W. D. Emanuel & F. L. Dash All-in-one Camera-bk. 33 If your hand is reasonably steady you will be able to give an exposure of 1/25 without moving the camera. A picture of this kind, made without the help of a tripod or other fixed support, can be counted as a snap—an instantaneous exposure.

1973 B. Jay Victorian Cameraman 57 Instantaneous exposures were not possible when Frith first began his photographic business.

figurative.1869 A. J. Ellis On Early Eng. Pronunc. I. i. i. 17 Each written word is, as it were an instantaneous photograph of a living thing.

c. instantaneous (grip) vice (see quots.).

ΚΠ

1888 Lockwood's Dict. Mech. Engin. Instantaneous Grip Vice, or Sudden Grip Vice, a vice which is provided with levers, a toggle-joint, and rack, by means of which it is enabled to clasp work without the loss of time involved in turning a screw.

1902 P. Marshall Metal Working Tools 28

1904 G. F. Goodchild & C. F. Tweney Technol. & Sci. Dict. 311/2 Instantaneous Vice, a vice in which the grip is obtained by some form of cam or rock.

d. Applied to a gramophone record in which the grooves are made directly by the cutting stylus during recording, and to the making of such records.

ΘΚΠ

society > communication > record > recording or reproducing sound or visual material > sound recording and reproduction > a sound recording > [adjective] > type of record

long-playing1883

out of print1896

seven-inch1902

twelve-inch1903

ten-inch1908

white-label1927

instantaneous1937

single-sided1937

long-play1948

pre-electric1960

platinum1964

1937 Electronics Sept. 65/3 (advt.) Disclube protects the delicate sound impressions in the record groove... A 2 oz. bottle of Disclube will be sent..to any person or firm equipped to make instantaneous recordings.

1949 J. G. Frayne & H. Wolfe Elem. Sound Recording xiv. 263 Besides its commercial applications, instantaneous recording finds considerable use in the home and as an adjunct in some of the educational fields, such as voice and music training, although..magnetic recording is becoming a serious competitor in certain fields.

1949 J. G. Frayne & H. Wolfe Elem. Sound Recording xiv. 270 There is little practical difference between the best instantaneous records and the best pressings..when both are played with good light-weight reproducers.

e. instantaneous (water-)heater = geyser n. 2.

ΘΚΠ

the world > matter > properties of materials > temperature > heat > heating or making hot > that which or one who heats > [noun] > a device for heating or warming > for heating water

water heater1824

water bar1843

geyser1878

chip heater1900

immersion heater1914

instantaneous (water-)heater1935

back-boiler1939

fridge-heater1957

1935 Plumber & Decorator Mar. 57/2 Instantaneous water heaters are of two types—the multi-point, supplying hot water to several taps in different parts of the house; the single-point ‘geyser’ supplying hot water at the place where it is fixed.

1940 Chambers's Techn. Dict. 450/2 Instantaneous water-heater.

1959 Chambers's Encycl. VII. 258/1 Instantaneous heaters may be multipoint, supplying hot water to a number of taps, or single point for one tap only.

2. Existing at or pertaining to some particular instant. Chiefly in Dynamics, as instantaneous axis, instantaneous centre of rotation.

ΘΚΠ

the world > time > duration > shortness or brevity in time > [adjective] > instantaneous > relating to some particular instant

instantaneous1837

1837 C. Babbage 9th Bridgewater Treat. App. K. 221 It is to be deduced..from the means of the instantaneous heights of the tide at all intervening periods.

1854 L. Tomlinson tr. D. F. J. Arago Pop. Lect. Astron. 131 Its axis of rotation may change every moment; and this multitude of axes..are called the instantaneous axes of rotation.

1886 A. G. Greenhill Differential & Integral Calculus 241 I..is the centre of instantaneous rotation of the right angle.

3. (See quot.).

ΚΠ

1904 G. F. Goodchild & C. F. Tweney Technol. & Sci. Dict. 311/2 Instantaneous value (Elect.), the value of a current or electromotive force at any given instant.

This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2019).

单词	instantaneous
释义	instantaneousadj. /ɪnstənˈteɪniːəs/ Etymology: < Latin type instāntāneus , after mōmentāneus* (probably in medieval or modern Latin: compare French instantané , 1734 in Hatzfeld & Darmesteter), < instānt-em instant n.; see -eous suffix. Compare momentaneous, simultaneous. 1. a. Occurring or operating in an instant; done, completed, or reaching completion without any perceptible lapse of time. ΘΚΠ the world > time > duration > shortness or brevity in time > [adjective] > instantaneous instantany1633 unmomentary1635 instantaneal1644 instantaneous1651 touch and go1682 presto1767 snappy1872 overnighta1911 durationless1919 split-second1946 on the spot1960 1651 R. Baxter Plain Script. Proof Infants Church-membership & Baptism 194 Justification is a continued Act, and not any Instantaneous act. 1657 T. Reeve God's Plea for Nineveh 29 God's knowledge is instantaneous. 1737 J. Thomson To Mem. Ld. Talbot 27 His Reason saw, With instantaneous View, the Truth of Things. 1822 T. Webster Imison's Elem. Sci. & Art (new ed.) I. 462 The motion of electricity..is so rapid, that it appears to be instantaneous. 1878 W. E. H. Lecky Hist. Eng. 18th Cent. I. i. 30 The effect on the English nation was instantaneous. b. Photography. Applied to an exposure whose duration is brief and predetermined by means of a shutter mechanism; originally applied to those sufficiently brief for a moving object to be photographed (in contrast to the time exposures that were usual), and later to those for which the camera may be held in the hand (see quots.). Also transferred, applied to a shutter designed for taking such exposures, a photograph taken with one, etc. Now chiefly Historical. ΘΚΠ society > leisure > the arts > visual arts > photography > [adjective] > types or methods generally tithonographic1842 instantaneous1851 ferrotype1857 telephotographic1892 telephoto1893 telephotal1904 tabletop1914 time-lapse1926 multiflash1939 synchro-sunlight1940 tele1954 lowlight1984 1851 Athenæum 6 Dec. 1286/2 (heading) On the production of instantaneous photographic images. 1858 T. Sutton & J. Worden Dict. Photogr. 229 Photographs obtained in a fractional part of a second of time are said to be instantaneous. 1867 T. Sutton & G. Dawson Dict. Photogr. 156 Mr. England and others use a guillotine sort of shutter, with a slot across it, which falls immediately in front of the sensitive plate... In some respects this is the best instantaneous shutter that has yet been devised. 1884 Gaiety Theatre Programme Oct. in L. de Vries Victorian Advts. (1968) 99/3 Superior Sets, comprising..Rectilinear Lens, with Instantaneous Shutter, suitable for taking instantaneous pictures of yachts sailing. 1891 W. E. Woodbury Encycl. Photogr. 356 Instantaneous dry plates are those coated with a very highly-sensitive emulsion that will become sufficiently impressed by the rapid exposure of the image upon it. An instantaneous lens is one that admits a large amount of actinic light. 1891 W. E. Woodbury Encycl. Photogr. 357 Instantaneous Photography.—In the very earliest days of photography this term was applied to what would now be considered very slow work indeed. We now usually apply this term when the exposure does not exceed one second. 1902 Encycl. Brit. XXXI. 698/2 It [sc. an efficient shutter] should be adjustable for variable instantaneous and for prolonged or ‘time’ exposures. 1939 W. D. Emanuel & F. L. Dash All-in-one Camera-bk. 33 It is usual to divide the long series of commonly used exposures into two parts. Exposures of 1/50 or 1/100 second or less belong to the instantaneous group, whereas the slower shutter speeds, such as 1/10 or 1/5 second, and so on, count as time exposures. 1939 W. D. Emanuel & F. L. Dash All-in-one Camera-bk. 33 If your hand is reasonably steady you will be able to give an exposure of 1/25 without moving the camera. A picture of this kind, made without the help of a tripod or other fixed support, can be counted as a snap—an instantaneous exposure. 1973 B. Jay Victorian Cameraman 57 Instantaneous exposures were not possible when Frith first began his photographic business. figurative.1869 A. J. Ellis On Early Eng. Pronunc. I. i. i. 17 Each written word is, as it were an instantaneous photograph of a living thing. c. instantaneous (grip) vice (see quots.). ΚΠ 1888 Lockwood's Dict. Mech. Engin. Instantaneous Grip Vice, or Sudden Grip Vice, a vice which is provided with levers, a toggle-joint, and rack, by means of which it is enabled to clasp work without the loss of time involved in turning a screw. 1902 P. Marshall Metal Working Tools 28 1904 G. F. Goodchild & C. F. Tweney Technol. & Sci. Dict. 311/2 Instantaneous Vice, a vice in which the grip is obtained by some form of cam or rock. d. Applied to a gramophone record in which the grooves are made directly by the cutting stylus during recording, and to the making of such records. ΘΚΠ society > communication > record > recording or reproducing sound or visual material > sound recording and reproduction > a sound recording > [adjective] > type of record long-playing1883 out of print1896 seven-inch1902 twelve-inch1903 ten-inch1908 white-label1927 instantaneous1937 single-sided1937 long-play1948 pre-electric1960 platinum1964 1937 Electronics Sept. 65/3 (advt.) Disclube protects the delicate sound impressions in the record groove... A 2 oz. bottle of Disclube will be sent..to any person or firm equipped to make instantaneous recordings. 1949 J. G. Frayne & H. Wolfe Elem. Sound Recording xiv. 263 Besides its commercial applications, instantaneous recording finds considerable use in the home and as an adjunct in some of the educational fields, such as voice and music training, although..magnetic recording is becoming a serious competitor in certain fields. 1949 J. G. Frayne & H. Wolfe Elem. Sound Recording xiv. 270 There is little practical difference between the best instantaneous records and the best pressings..when both are played with good light-weight reproducers. e. instantaneous (water-)heater = geyser n. 2. ΘΚΠ the world > matter > properties of materials > temperature > heat > heating or making hot > that which or one who heats > [noun] > a device for heating or warming > for heating water water heater1824 water bar1843 geyser1878 chip heater1900 immersion heater1914 instantaneous (water-)heater1935 back-boiler1939 fridge-heater1957 1935 Plumber & Decorator Mar. 57/2 Instantaneous water heaters are of two types—the multi-point, supplying hot water to several taps in different parts of the house; the single-point ‘geyser’ supplying hot water at the place where it is fixed. 1940 Chambers's Techn. Dict. 450/2 Instantaneous water-heater. 1959 Chambers's Encycl. VII. 258/1 Instantaneous heaters may be multipoint, supplying hot water to a number of taps, or single point for one tap only. 2. Existing at or pertaining to some particular instant. Chiefly in Dynamics, as instantaneous axis, instantaneous centre of rotation. ΘΚΠ the world > time > duration > shortness or brevity in time > [adjective] > instantaneous > relating to some particular instant instantaneous1837 1837 C. Babbage 9th Bridgewater Treat. App. K. 221 It is to be deduced..from the means of the instantaneous heights of the tide at all intervening periods. 1854 L. Tomlinson tr. D. F. J. Arago Pop. Lect. Astron. 131 Its axis of rotation may change every moment; and this multitude of axes..are called the instantaneous axes of rotation. 1886 A. G. Greenhill Differential & Integral Calculus 241 I..is the centre of instantaneous rotation of the right angle. 3. (See quot.). ΚΠ 1904 G. F. Goodchild & C. F. Tweney Technol. & Sci. Dict. 311/2 Instantaneous value (Elect.), the value of a current or electromotive force at any given instant. This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2019). < adj.1651
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