Adjacent Words

Pneumatics definitions

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Webster's 1828 Dictionary

PNEUMAT'ICS, n. In natural philosophy, that branch which treats of air. In chimistry, that branch which treats of the gases.
1. In the schools, the doctrine of spiritual substances, as God, angels, and the souls of men.

WordNet (r) 3.0 (2005)

n
1: the branch of mechanics that deals with the mechanical properties of gases

Oxford Reference Dictionary

n.pl. (treated as sing.) the science of the mechanical properties of gases.

Webster's 1913 Dictionary

Pneumatics Pneu*mat"ics, n. [Cf. F. pneumatique.] 1. That branch of science which treats of the mechanical properties of air and other elastic fluids, as of their weight, pressure, elasticity, etc. See Mechanics. 2. (Philos. & Theol.) The scientific study or knowledge of spiritual beings and their relations to God, angels, and men.

Webster's 1913 Dictionary

Mechanics Me*chan"ics, n. [Cf. F. m['e]canique.] That science, or branch of applied mathematics, which treats of the action of forces on bodies. Note: That part of mechanics which considers the action of forces in producing rest or equilibrium is called statics; that which relates to such action in producing motion is called dynamics. The term mechanics includes the action of forces on all bodies, whether solid, liquid, or gaseous. It is sometimes, however, and formerly was often, used distinctively of solid bodies only: The mechanics of liquid bodies is called also hydrostatics, or hydrodynamics, according as the laws of rest or of motion are considered. The mechanics of gaseous bodies is called also pneumatics. The mechanics of fluids in motion, with special reference to the methods of obtaining from them useful results, constitutes hydraulics. Animal mechanics (Physiol.), that portion of physiology which has for its object the investigation of the laws of equilibrium and motion in the animal body. The most important mechanical principle is that of the lever, the bones forming the arms of the levers, the contractile muscles the power, the joints the fulcra or points of support, while the weight of the body or of the individual limbs constitutes the weight or resistance. Applied mechanics, the principles of abstract mechanics applied to human art; also, the practical application of the laws of matter and motion to the construction of machines and structures of all kinds.

Soule's Dictionary of English Synonyms

n. Science of elastic fluids.

Moby Thesaurus

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