单词 | footprint |
释义 | footprintn. I. The print of a foot. 1. a. A print or impression left by the foot of a person or animal, or by the tread of a person's shoe. ΘΚΠ the world > the earth > structure of the earth > structural features > mark on feature or surface > [noun] seamc1330 footprint1552 stringa1728 wrinklea1807 ripple mark1831 ripple1838 grooving1846 wave-mark1863 sand-scratch1871 chatter-mark1888 cross-colouring1901 wave-marking1903 society > communication > indication > marking > a mark > trace or vestige > [noun] > left by the passage of something > of a person or animal > track of footprints > footprint trod946 lastOE foot sporeOE tread?c1225 stepc1290 footstepa1300 solec1325 tracta1547 footprint1552 traces1552 footing1563 foot track1600 accub1623 vestigating1634 vestige1656 seal1686 sign1692 footmark1756 stabble1863 pelmatogram1890 paw print1894 society > communication > indication > marking > a mark > trace or vestige > [noun] > left by the passage of something > of a person or animal > track of footprints > fossilized footprint1850 1552 R. Huloet Abcedarium Anglico Latinum Fote prynte, or the printe of the fote, peda. 1613 S. Purchas Pilgrimage v. xvii. 459 His foot-print was two spannes long. 1623 H. Cockeram Eng. Dict. i Traces, the feet-print of rauening beasts. 1735 Sportsman's Dict. II. Marks, [amongst Hunters], the foot-prints and treadings of wild beasts. 1850 C. Lyell 2nd Visit U.S. (ed. 2) II. 304 Certain fossil foot-prints of a reptile said to have been found in strata of the ancient coal-formation. 1865 E. B. Tylor Res. Early Hist. Mankind 115 The typical case is the sacred footprint of Ceylon. 1888 J. W. Burgon Lives Twelve Good Men II. v. 25 Their footprints in yesterday's snow were all still there. a1933 J. A. Thomson Biol. for Everyman (1934) I. xviii. 467 Amphibians emerged in the time of the Old Red Sandstone..but the earliest forms are known only from their footprints. 1984 N.Y. Times 14 Oct. xicn. 2/2 Paleontologists later discovered that the footprints belonged to..a dinosaur the size of a pony. 2012 Irish Daily Mail (Nexis) 19 July 8 The former attorney general said there was a ‘clear indication’ that fingerprints, DNA and a footprint at the scene belonged to the assailant. b. figurative and in figurative contexts. An impression or trace of something. ΘΚΠ society > communication > indication > marking > a mark > trace or vestige > [noun] signa1382 stepa1382 ficchingc1384 marka1400 tracesc1400 scentc1422 footstep?a1425 tidinga1440 relicc1475 smell?a1505 stead1513 vestigy1545 print1548 token1555 remnant1560 show1561 mention1564 signification1576 footing?1580 tract1583 remainder1585 vestige1602 wrack1602 engravement1604 footstepping1610 resent1610 ghost1613 impression1613 remark1624 footprint1625 studdle1635 vestigium1644 relict1646 perception1650 vestigiary1651 track1657 symptom1722 signacle1768 ray1773 vestigia1789 footmark1800 souvenir1844 latent1920 1625 S. Purchas Pilgrimes I. i. ii. 58 Places where no foot print of Christianity is extant. 1664 J. Playford Brief Introd. Skill Musick (ed. 4) i. 58 Of which I do intend in this my Discourse to leave some foot-prints. 1795 A. O'Connor Let. Earl of Carlisle 20 He was rather too delicate to tread in the dirty foot-prints of his predecessors. 1838 H. W. Longfellow Psalm of Life in Knickerbocker Mag. Sept. 189 Leave behind us Foot-prints on the sands of time. 1922 Telephony 25 Nov. 22/2 J. L. W. Zietlow has gone, but he has left a footprint on the sands of time. 2010 N.Y. Times 7 Jan. b17/1 Willie provided that kind of leadership. His handprint, thumbprint, footprint, heart print is all over Memphis music. II. An area occupied or affected by something. 2. The area over which a tyre makes contact with the ground. ΘΚΠ society > travel > means of travel > a conveyance > vehicle > vehicles according to means of motion > vehicle moving on wheels > [noun] > parts of vehicle moving on wheels > wheel > rubber or pneumatic tyre > area of contact with road footprint1925 1925 Jrnl. Soc. Automotive Engineers Feb. 207 In low-pressure tires the footprint is increased in area about 60 per cent. 1961 Pop. Sci. Dec. 185/1 This also increases the tire's ‘footprint,’ which results in improved traction and skid resistance. 1986 Power Farming Oct. 47/2 (advt.) Agricultural Radial Tyres have an increased footprint, providing lower soil compaction from the tyre. 2003 B. Bolles Stock Car Setup Secrets ix. 69 If you run with a lower pressure than the tire needs, the tire will roll over somewhat and lose traction because of a reduced footprint. 3. Astronautics. The area within which a spacecraft is intended or predicted to land, typically having the form of a trapezium (sometimes likened to the sole of the human foot). Also more fully landing footprint. ΘΚΠ society > travel > air or space travel > space flight > [noun] > a space shot or flight > slow landing without damage > expected landing area ballpark1943 recovery area1943 footprint1962 1962 F. Offenhartz et al. in Proc. National Meeting Manned Space Flight 134/1 Aerodynamic modulation using flaps and control augmentation requirements are discussed in terms of their effect upon..landing footprints. 1968 Pop. Sci. Aug. 82/2 This makes the footprint area where a landing is possible..about 1,000 miles long—with a width of 440 miles at the ‘heel’ and 660 miles at the ‘toe’. 1988 W. Schirra & R. N. Billings Schirra's Space (1995) vii. 137 The vector in turn would determine the landing area—the footprint, as it's known. 2007 J. A. Angelo Robot Spacecraft vii. 145 The landing footprint for the sample return capsule was about 18.6 by 52.2 miles (30 by 84 km)—an ample space to allow for aerodynamic uncertainties and winds. 4. More fully noise footprint. The area of ground over which the noise of a plane flying overhead exceeds a certain level. ΘΚΠ society > travel > air or space travel > specific movements or positions of aircraft > aerodynamic forces and concepts > [noun] > ground affected by aircraft noise or pressure footprint1967 1967 A. J. Evans Let. 14 Sept. in Congress. Rec. 27 Sept. 27010/1 The above studies will form the basis of a project to develop methods for predicting the noise footprint from an operational aircraft. 1982 New Scientist 24 June 857/2 This low noise level..keeps the obtrusive footprint within the airport boundary in many cases. 2011 O. Zaporozhets et al. Aircraft Noise iv. 180 The noise radius approach is convenient for footprint assessment for every flightpath, takeoff and landing. 5. gen. The surface area occupied by a device, structure, etc. ΘΚΠ society > computing and information technology > hardware > computer > [noun] > personal computer > area occupied footprint1969 1969 Jane's Freight Containers 1968–9 iv. 436/3 Rectangular container. Top opening, plywood... Foot print: 4 sq ft. 1980 Computerworld 20 Oct. 11/1 Mass storage systems such as the IBM Model 3850..could result in floor space problems because of their large ‘footprint’. 1991 Observer 22 Sept. 11/3 (advt.) A true desktop size with a footprint no wider than a sheet of A3. 1999 T. Clancy Carrier 163 At the midpoint of each wing is a folding hinge, which allows the deck crews to reduce the ‘footprint’ of the F/A-18 on the limited space of the flight and hangar decks. 2014 Jrnl. Soc. Archit. Historians 73 469/2 Building contractors ensured that the footprint of the former military base was reused. 6. The area within which transmissions or signals from a given device can be received; the area capable of receiving transmissions or signals broadcast by a given organization. ΘΚΠ society > communication > broadcasting > equipment > [noun] > received pickup device1923 footprint1971 1971 IEEE Trans. Aerospace & Electronic Syst. 7 235/2 This paper develops the expression for computing the footprint on earth (i.e. power density contours) of a satellite antenna. 1985 Music 2 Feb. 15/4 Adjoining areas of advertising potential can be added to a [radio] station's ‘footprint’ without losing local relevance. 1990 Screen Internat. 21 Apr. 18/1 Medium-powered satellites have a footprint which covers only a little more than the domestic frontiers. 2011 N.Y. Times 31 May a22/1 They depend on roaming agreements to stitch together a bigger footprint. 7. Molecular Biology. On a gel displaying bands produced by enzymatic or chemical digestion of protein-bound DNA or RNA: an area in which the protein has protected the nucleic acid from digestion, manifested as a loss of bands in comparison with a control. Frequently attributive. Cf. footprinting n. 2. ΚΠ 1978 D. J. Galas & A. Schmitz in Nucleic Acids Res. 5 3157 It is then possible to see the protective ‘footprint’ of the binding protein on the DNA sequence. 1987 Proc. National Acad. Sci. U.S.A. 84 3585/1 Addition of the TFIIIC1 fraction extends the footprint over the internal control region called the A block. 1993 Cell 73 402/2 The genomic footprint at the c-fos SRE remains unchanged throughout growth factor stimulation. 2005 D. L. Croteau et al. in W. Siede et al. DNA Damage Recognition 127 Upon UvrB binding.., the DNA footprint is reduced from 33 to a 19 bp footprint pattern. III. The cumulative effect of an activity on its environment. 8. The impact of human activity on the environment, esp. with regard to pollution, loss of biodiversity, or consumption of natural resources; an instance of this; the magnitude of this. Cf. carbon footprint n. at carbon n. Compounds 3, ecological footprint n. at ecological adj. Compounds. ΚΠ 1979 Park Service Concessions Policy, Hearings Subcomm. Parks, Recreation, & Renewable Resources (U.S. Cong. Senate Comm. Energy & Nat. Resources) 799 An alternate proposal that would remove environmental footprint from Yosemite Valley..would remove a number of buildings, consolidate service, and reduce somewhat the number of employees. 1988 Oil & Gas Jrnl. 29 Feb. 23/2 No doubt exists that Prudhoe Bay oil field has indeed resulted in a ‘footprint’ on the tundra. 2003 F. Buell From Apocalypse to Way of Life 148 The developed world creates more than its share of woe through the broadening footprint left by its economic machine. 2012 Green Parent Apr. 44 They worked together to build the first groundhouse—an ecologically sustainable home with almost zero footprint. 9. Computing. The amount of system memory used by a program or peripheral during its operation; = memory footprint n. at memory n. Compounds 2. ΘΚΠ society > computing and information technology > hardware > [noun] > memory > used during processing working space1829 buffer1948 working storage1954 workspace1959 buffer store1962 footprint1993 1993 R. Pronk DOS 6 Insider iv. x. 283 Memory manager A might leave a larger footprint in conventional memory than memory manager B. 1998 InfoWorld 23 Nov. 25/5 The picoJava technology is notable because it enables the use of Java technology in a much smaller footprint and at a much lower cost than software-only deployment of Java. 2007 M. Debbabi et al. Embedded Java Security ii. 33 The footprint resulting from integration of the E-Bunny dynamic compiler does not exceed 138 KB. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online June 2022). footprintv. 1. transitive. To mark with a footprint or footprints. Also: to record with one's footprints on a surface. ΘΚΠ society > communication > indication > marking > a mark > trace or vestige > [verb (transitive)] > mark with footprint print1637 footmark1821 footprint1850 web1866 1850 E. B. Browning Poems (new ed.) I. 201 Pavement fair, The antique wood-nymphs scarce would dare To footprint o'er. 1964 Evening Independent (St. Petersburg, Florida) 11 May 4- a/1 Mike..proceeded to footprint the proof of his expedition on her shiny scrubbed floor. 1992 Islands Aug. 80/1 There is not a soul to footprint the warm, powder sand. 2004 Spokesman Rev. (Spokane, Washington) (Nexis) 19 July 4 b Footprinting the sand is legal below the high-tide line. 2. transitive. To record or take a footprint of (in various senses of the noun). ΚΠ 1920 Pop. Sci. Monthly Apr. 80 (caption) Foot-printing a boy for identification if he should be lost or kidnapped. 1935 Delphi (Indiana) Jrnl. 4 July 12 He had footprinted many local car owners' tires and..could substantiate the national report that many tires now in use are in need of attention. 1985 Proc. National Acad. Sci. U.S.A. 82 6470/1 Some of the above methods, in particular DNA modification by dimethyl sulfate or UV light, have been used recently to footprint DNA-protein interactions in vivo. 1996 Population & Environment 17 204 (heading) ‘Footprinting’ the Human Economy. 2013 Irish Daily Mail (Nexis) 12 Mar. 26 Newborn babies are isolated from their mothers immediately after birth, to be washed, weighed and footprinted. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022). < |
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