The kernel of the Z(2)(n) Dirac-Dunkl operator is examined. The symmetry algebra A(n) of the associated Dirac-Dunkl equation on Sn-1 is determined and is seen to correspond to a higher rank generalization of the Bannai-Ito algebra. A basis for the polynomial null-solutions of the Dirac-Dunkl operator is constructed. The basis elements are joint eigenfunctions of a maximal commutative subalgebra of An and are given explicitly in terms of Jacobi polynomials. The symmetry algebra is shown to act irreducibly on this basis via raising/lowering operators. A scalar realisation of An is proposed. (C) 2016 Elsevier Inc. All rights reserved.