having weight evenly distributed; being in a state of equilibrium

(of a person) mentally and emotionally stable

(of a discussion, programme, etc) presenting opposing points of view fairly and without bias

(of a diet) consisting of all essential nutrients in suitable form and amounts to maintain health

(of a budget) having expenditure no greater than income

(of signals or circuitry) symmetrically disposed about earth or other reference potential

(of a chemical equation) having the correct relative number of moles of reactants and products