DIAZO- n.
mbining form (also used adjectively), meaning pertaining to, or derived from, a series of compounds containing a radical of two nitrogen atoms, united usually to an aromatic radical; as, diazo- benzene, C6H5.N2.OH.
DISCOID a.
orls in one plane, so as to form a disk, as the pearly nautilus. Discoid flower (Bot.), a compound flower, consisting of tubular florets only, as a tansy, lacking the rays which are seen in the daisy and sunflower.
DISTILLATION n.
mplex solid substances, so that the ultimate constituents are separated or evolved in new compounds, -- usually requiring a high degree of heat; as, the destructive distillation of soft coal or of wood. -- Dry distillation, the distillation of substances by themselves, or without the addition of water or of other vola…