Symmetry-adapted linear combination

Symmetry-adapted linear combination may refer to:
 * The linear combination of atomic orbitals in the subject of molecular orbitals
 * Configuration state function, the linear combination of Slater determinants
 * Orbital hybridization, the linear combination of orbitals on the same atom in valence bond theory
 * Resonance (chemistry), the linear combination of contributing structures in valence bond theory