amorphous solid Any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern.
aqueous Made from, with, or by water.
coefficient Any of the factors of a product considered in relation to a specific factor; specifically, a constant factor of a term as distinguished from a variable.
colligative Depending on the number of particles (as molecules) and not on the nature of the particles.
colloid A substance that consists of particles dispersed throughout another substance but whose particles are incapable of passing through a semipermeable membrane.
covalent bond The interatomic linkage that results from the sharing of an electron pair between two atoms, arising from the electrostatic attraction of their nuclei for the same electrons.
critical point The set of conditions under which a liquid and its vapour become identical.
diffusion coefficient The constant of proportionality between the flow of a material and the gradient of its concentration.
diffusion thermoeffect The physics effect in which an imposed concentration difference causes a temperature difference to develop.
dipole A pair of equal and opposite electric charges or magnetic poles of opposite sign separated by a distance.
eutectic The one mixture of a set of substances able to dissolve in one another as liquids that, of all such mixtures, liquefies at the lowest temperature.
fugacity A measure of the tendency of a component of a liquid mixture to escape, or vaporize, from the mixture.
immiscible Incapable of mixing or attaining homogeneity.
lepton Any member of a class of subatomic particles that respond only to electromagnetic, weak, and gravitational forces, but not by strong force.
manometer An instrument for measuring the pressure of gases and vapors.
mole A standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.
osmosis The diffusion of a solvent through a semipermeable membrane.
polymer A chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units.
radiometer A four-vaned mill that spins when light is absorbed by the vanes.
thermal transpiration The situation in which, given equal initial pressure, gas will flow from the low-temperature side to the high-temperature side, causing the high-temperature pressure to increase.
thermodynamics The science of the relationship between heat, work, temperature, and energy.
viscosity A matter transport property characterized by the resistance to flow.