a. (Biol.) Of or pertaining to a tegument or tegmentum; as, the tegmental layer of the epiblast; the tegmental cells of the taste buds. [ 1913 Webster ]
‖n.; pl.Tegmenta [ L., a covering. ] (Anat.) A covering; -- applied especially to the bundles of longitudinal fibers in the upper part of the crura of the cerebrum. [ 1913 Webster ]