atmospheric pressure
71atmospheric — /ætməsˈfɛrɪk/ (say atmuhs ferik) adjective Also, atmospherical. 1. relating to, existing in, or consisting of the atmosphere: atmospheric vapours. 2. caused, produced, or operated on by the atmosphere: atmospheric pressure. –noun 3. Radio… …
72atmospheric engine — an early form of single acting engine in which the power stroke is provided by atmospheric pressure acting upon a piston in an exhausted cylinder. [1815 25] * * * atmospheric engine noun An early variety of steam engine in which the steam is… …
73pressure — 1. noun 1) atmospheric pressure Syn: force, load, stress, thrust, compression, weight 2) there was pressure to conform Syn: persuasion, intimidation, coercion, compulsion, dur …
74pressure — pres•sure [[t]ˈprɛʃ ər[/t]] n. v. sured, sur•ing 1) the exertion of force upon a surface by an object, fluid, etc., in contact with it 2) phs Physics. force per unit area Symbol: P II, 3), b) 3) the state of being pressed or compressed 4)… …
75pressure altitude — An atmospheric pressure expressed in terms of altitude which corresponds to that pressure in the standard atmosphere. See also altitude …
76pressure gradient — Meteorol. the change in atmospheric pressure per unit of horizontal distance in the direction in which pressure changes most rapidly. Also called barometric gradient. [1915 20] * * * …
77pressure gradient — /ˈprɛʃə greɪdiənt/ (say preshuh graydeeuhnt) noun the decrease in atmospheric pressure per unit of horizontal distance in the direction in which pressure decreases most rapidly …
78pressure jump line — noun : a line along which an atmospheric pressure wave produces a sudden increase of pressure that often results in storms …
79atmospheric engine — an early form of single acting engine in which the power stroke is provided by atmospheric pressure acting upon a piston in an exhausted cylinder. [1815 25] * * * …
80Atmospheric crude oil distillation — The refining process of separating crude oil components at atmospheric pressure by heating to temperatures of about 600 degrees to 750 degrees Fahrenheit (depending on the nature of the crude oil and desired products) and subsequent condensing… …
