单词 | airspace |
释义 | airspacen. 1. Space for the use or passage of air, as for respiration, insulation, etc.; an expanse of this. ΚΠ 1839 Times 5 Oct. 2/5 There should be a complete air space of 12 to 18 inches between the boiler, sides, and timbers. 1847 Proc. Amer. Philos. Soc. 1843–7 4 221 The gun is not more liable to burst when there is an air space between the powder and ball. 1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 561 The intercellular air-spaces of the cortical parenchyma are in open communication with the external air at the time of active vegetation. 1900 Lancet 11 Aug. 458/1 That this conference approves that the standard of air space for dwellers in cities and large towns be raised to 500 cubic feet for every adult. 1936 Discovery June 197/2 Those organs having much fatty tissue and air-spaces such as the bones and lungs. 1962 Appraisal Terminol. & Handbk. (Amer. Inst. Real Estate Appraisers) (ed. 4) 93 Hollow wall, a wall made of two walls with air space between. 1998 T. Lust Pass Polenta 82 She could tell, just by opening the oven door and holding her smooth little hand in the airspace, when the wood-fired cookstove was hot enough to take her loaves. 2. The space in the air directly above an area of the earth's surface, esp. as used for the operation of aircraft. ΘΚΠ society > travel > air or space travel > specific movements or positions of aircraft > air as medium for operation of aircraft > [noun] skyway1900 airspace1908 1908 Proc. Amer. Polit. Sci. Assoc. 5 84 As the airspace comes under the domination and control of man, it is embraced within the jurisdiction of law. 1912 Polit. Sci. Q. 27 176 Legal literature relating to the extent of the rights of the landowner in the airspace above his head. 1924 J. B. Moore Internat. Law & Some Current Illusions v. 250 The right of neutral aircraft to circulate in the airspace over the high seas is emphasized. 1930 Yale Law Jrnl. 39 627 The plaintiff then sought an injunction on the basis of a continuing trespass, claiming the column of airspace above the projection. 1940 M. Tornich Radius Action Aircraft App. A 89 The airspace above an area within a 3-mile radius of the control airport is designated as a ‘Control Zone’. 1965 Public Admin. Rev. 25 285 I would emphasise that the problems of air pollution and effective management of urban airspace are quite similar in nature to water resource management. 1996 P. Richmond My Father's War ii. 84 The air-traffic controller in charge of one section of airspace was supposed to be handing off the plane to another. 3. Capacity for television or radio broadcasting; (also) = airtime n. 1a. ΘΚΠ society > communication > broadcasting > [noun] > time of broadcast or place in schedule fixed point1778 time1924 airtime1931 spot1937 adjacency1947 prime time1947 airdate1950 space1956 slotting1959 airspace1960 time slot1962 slot1964 strand1979 1960 Univ. Pennsylvania Law Rev. 108 878 Mr. Justice Frankfurter..acknowledged..the nation's limited available airspace. 1966 Listener 15 Sept. 400/2 The BBC gave considerable air space to this year's annual meeting. 1991 MBI Feb. 10/4 The lack of airspace for Austrian acts is stifling the otherwise healthy independent scene. 2006 Straits Times (Singapore) (Nexis) 5 Apr. Indonesia is clamping down on the issuing of broadcasting licences, as it runs out of airspace for mushrooming TV stations. This entry has been updated (OED Third Edition, June 2008; most recently modified version published online December 2021). < n.1839 |
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