See also astronomy; cosmology; gravity; radiation.
the state or quality of having different properties along different axes. See also botany
. —anisotropic, adj.
the condition of constant, uninterrupted variability of direction or position. —astatic, adj.
the theory of atoms.
the branch of physics that deals with living things. —biophysicist, n.
the study of heat and electricity.
the science that studies crystallization and the forms and structures of crystals. —crystallographer, n.
—crystallographic, crystallographical, adj.
a property of certain materials of being repelled by both poles of a magnet, thus taking a position at right angles to the magnet’s lines of influence.
the measurement of energy used in doing work. —dynamometer, n.
—dynamometric, dynamometrical, adj.
orientation in relation to a current of electricity. —electrotropic, adj.
the branch of physics that studies energy and its transformation. —energeticist, n.
a doctrine that asserts that certain phenomena can be explained in terms of energy. —energist, n.
the application of alternating electrical current for therapeutic purposes. —faradic, adj.
the determination of focal length. —focimetric, adj.
static electricity. Also called Franklinic electricity
a direct electrical current, especially one produced by chemical action. —galvanic, adj.
a work on the production of electric current by chemical means. —galvanologist, n.
the measurement of the strength of electric currents, by means of a galvanometer. —galvanometric, galvanometrical, adj.
the physics of the earth, including oceanography, volcanology, seismology, etc. —geophysicist, n.
the study of the behavior of rotating solid bodies. —gyrostatic, adj.
the study of salts. Also called halotechny
the similarity of the crystalline forms of substances that have different chemical compositions. —homeomorphous, adj.
the science concerned with the laws governing water and other liquids in motion and their engineering applications.
applied or practical hydrodynamics.
the study of forces that act on or are produced by liquids. Also called hydromechanics
. —hydrodynamic, hydrodynamical, adj.
the branch of hydrodynamics dealing with the laws of gases or liquids in motion. —hydrokinetic, adj.
hydrodynamics. —hygrometric, hygrometrical, adj.
the study of the equilibrium and pressure of liquids. —hydrostatician, n.
—hydrostatic, hydrostatical, adj.
the branch of physics concerned with the measurement of moisture in the air. —hygrometric, hygrometrical, adj.
close similarity between the forms of different crystals. See also biology
. —isomorph, n.
the branch of mechanics that deals with motion without reference to force or mass. —kinematic, kinematical, adj.
the study of magnets and magnetism.
the state exhibited by a crystal, having three unequal axes with one oblique intersection; the state of being monoclinic. See also biology
. —monosymmetric, monosymmetrical, adj.
the technology of optical instruments and apparatus.
the study of the wave-forms of changing currents, voltages, or any other quantity that can be translated into electricity, as light or sound waves. —oscillographic, adj.
the measurement of osmotic pressure, or the force a dissolved substance exerts on a semipermeable membrane through which it cannot pass when separated by it from a pure solvent. —osmometric, adj.
the doctrine that explains the universe in physical terms.
the science that studies matter and energy in terms of motion and force. —physicist, n.
a property of some crystals of showing variation in color when viewed in transmitted light or from different directions. Also called pleochromatism, polychroism, polychromatism
. —pleochroic, pleochromatic, adj.
the theory that nature contains no vacuums. Cf. vacuism.
pleochromatism, polychroism, polychromatism
the study of fire and heat, especially with regard to chemical analysis.
the measurement of radiant energy by means of a radiometer, an instrument composed of vanes which rotate at speeds proportionate to the intensity of the energy source. —radiometric, adj.
the transformation of radiant energy into sound.
measurement of the distribution of energy in a spectrum by means of a spectrobolometer, an instrument combining a bolometer and a spectroscope. —spectrobolometric, adj.
the branch of mechanics or physics that deals with matter and forces in equilibrium. —statical, adj.
an apparatus for illustrating in graphic form the composition of two simple harmonic motions at right angles.
the science of operating or controlling mechanisms by remote control, especially by radio.
the science or study of the emission of electrons from substances at high temperatures. —thermionic, adj.
the science or study of the equilibrium of heat.
the science and technology of friction, lubrication, and wear.
a property, peculiar to certain crystals, of transmitting light of three different colors when viewed from three different directions. Also called trichromatism
. —trichroic, adj.
the condition of having, using, or combining three colors.
trichroism. —trichromatic, adj.
the science of rotary motion. —trochilic, adj.
the theory that nature permits vacuums. Cf. plenism.
electricity generated by chemical means, as in a cell or battery; galvanism.