The dielectric properties of a new, cubic, pyrochlore-type solid solution Bi(1.6-1.08x)NdxTi2O(6.4-0.11x) have been studied across the compositional range 0.35 < x < 0.86. The dielectric constant (epsilon) of the ceramics based on the pyrochlore-type solid solution within the experimental compositional range varied from 104 to 76 at 1 MHz, whereas the dielectric losses were well below tan delta = 8 x 10(-3). The temperature coefficient of the dielectric constant tau(k) for single-phase pyrochlore samples was found to be in the range between -20 and -40 ppm/K. Below room temperature dielectric relaxation phenomena were observed for all the compositions.