| 释义 |
barometric, a.|bærəʊˈmɛtrɪk|
[f. prec. + -ic; cf. Gr. µετρικός of measuring.]
a. Of the nature of, pertaining to, or indicated by a barometer.
1802Rees Cycl. s.v. Barometer, The difference of the barometric heights. 1827Faraday Chem. Manip. xv. 378 The mean height or barometric pressure. 1831Lardner Pneumat. iv. 253 The column of mercury sustained in the barometric tube. 1854Scoffern in Orr's Circ. Sc. Chem. 313 The barometric weather-glass is supplied with a dial index. 1884F. J. Britten Watch & Clockm. 29 Barometric Error..the alteration in the timekeeping of a clock due to changes in the density of the atmosphere.
b. barometric altimeter = altimeter 2; barometric tendency (see quot.).
1930Proc. Inst. Radio Engin. XVIII. 832 The barometric altimeter is adjusted to read altitude above the [landing] field. 1962Gloss. Aeronaut. Terms (B.S.I.) v. 11 Barometric altimeter, an aneroid barometer graduated to indicate altitude according to a standard atmosphere.
1916Weather Map (Meteorol. Office) 36 Barometric tendency..is the change in the pressure..within the three hours immediately preceding the fixed hours of observation. |