(crystallography) The constant distance between unit cells in a crystal lattice. It may be different in each direction, thus a crystalline substance may have up to three lattice constants.

(physics, classical mechanics) One of the equations/identities which define a variety within the configuration space, such that the state of the physical system being described is constrained to correspond only to points within that variety.

(chemistry) A measure of the relative concentrations of the reactants and products of a reversible reaction at equilibrium

(chemistry) The equilibrium constant for the dissociation of an acid, and thus a measure of its strength

(rhetoric) An utterance in which more is implied than is said, such as "the beasts trembled forth from their dens" (i.e. trembling with fright).

An employee working on a physical construction site.

(law) A legal fiction describing a situation where a person or entity gained an unfair advantage over another by deceitful or unfair methods. Intent does not need to be shown.

Alternative form of outrun the constable

(dated) To spend more than one's income; to get into debt.

(military, historical) In the German Democratic Republic, a person who did not bear arms but instead did construction work.