2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Atmospheric \At`mos*pher"ic\, Atmospherical \At`mos*pher"ic*al\,
a. [Cf. F. atmosph['e]rique.]
1. Of or pertaining to the atmosphere; of the nature of or
resembling, the atmosphere; as atmospheric air; the
atmospheric envelope of the earth.
2. Existing in the atmosphere.
The lower atmospheric current. --Darwin.
3. Caused, or operated on by the atmosphere; as an
atmospheric effect; an atmospheric engine.
4. Dependent on the atmosphere. [R.]
In am so atmospherical a creature. --Pope.
{Atmospheric engine}, a steam engine whose piston descends by
the pressure of the atmosphere, when the steam which
raised it is condensed within the cylinder. --Tomlinson.
{Atmospheric line} (Steam Engin.), the equilibrium line of an
indicator card. Steam is expanded ``down to the
atmosphere'' when its pressure is equal to that of the
atmosphere. (See {Indicator card}.)
{Atmospheric pressure}, the pressure exerted by the
atmosphere, not merely downwards, but in every direction.
In amounts to about 14.7 Ibs. on each square inch.
{Atmospheric railway}, one in which pneumatic power, obtained
from compressed air or the creation of a vacuum, is the
propelling force.
{Atmospheric tides}. See under {Tide}.
From WordNet r 1.6 [wn]:
atmospheric
adj : relating to or located in the atmosphere; "atmospheric
tests" [syn: {atmospherical}]
more about atmospheric
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