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physics which relates to the determination of the humidity of bodies, particularly of the atmosphere, with the theory and use of the instruments constructed for this purpose.

An instrument which shows whether there is more or less moisture in the atmosphere, without indicating its amount.

Having the property of readily inbibing moisture from the atmosphere, or of the becoming coated with a thin film of moisture, as glass, etc.

on in very far north; most northern; hence, very cold; fright, as, a hyperborean coast or atmosphere. The hyperborean or frozen sea. C. Butler (1633).

acuo as in the open air,and therefore are not influenced by the weight or pressure of the atmosphere. Sir I. Newton. This standing revelation . . . is sufficient to influence their faith and practice, if they attend. Attebury. The principle which influenced their obedience has lost its efficacy. Rogers.…

The sky; the atmosphere; the firmament. [Obs. or Scot.]

cloud to the earth. The sound produced by the electricity in passing rapidly through the atmosphere constitutes thunder.

The solid earth as distinguished from its fluid envelopes, the hydrosphere and atmosphere.

The indistinct and magnified appearance of objects seen in particular states of the atmosphere. See Mirage.

Any phenomenon or appearance in the atmosphere, as clouds, rain, hail, snow, etc. Hail, an ordinary meteor. Bp. Hall.

mall body moving through space, or revolving about the sun, which on entering the earth's atmosphere would be deflagrated and appear as a meteor. These bodies [small, solid bodies] before they come into the air, I call meteoroids. H. A. Newton.

Of or pertaining to the atmosphere and its phenomena, or to meteorology. Meteorological table, Meteorological register, a table or register exhibiting the state of the air and its temperature, weight, dryness, moisture, motion, etc.

The science which treats of the atmosphere and its phenomena, particularly of its variations of heat and moisture, of its winds, storms, etc.

Visible watery vapor suspended in the atmosphere, at or near the surface of the earth; fog.

mist; obscured by, or overspread with, mist; as, misty weather; misty mountains; a misty atmosphere.

Moderately wet; damp; humid; not dry; as, a moist atmosphere or air. "Moist eyes." Shak.

A colorless nonmetallic element, tasteless and odorless, comprising four fifths of the atmosphere by volume. It is chemically very inert in the free state, and as such is incapable of supporting life (hence the name azote still used by French chemists); but it forms many important compounds, as ammonia, nitric acid, th…

ischarging the steam from the cylinder at a pressure nearly equal to or above that of the atmosphere and not into a condenser.

Of or pertaining to a hospital; as, nosocomial atmosphere. Dunglison.

nse by which the impressions made on the olfactory organs by the odorous particles in the atmosphere are perceived.