| prisma | A structure resembling a prism. Origin: G. Something sawed, a prism (05 Mar 2000) |
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| prismata adamantina | The calcified, microscopic rods radiating from the surface of the dentin, forming the substance of the enamel of a tooth. Synonym: enamel fibres, enamel prisms, enamel rods. (05 Mar 2000) |
| prismatic | Relating to or resembling a prism. (05 Mar 2000) |
| prismatical | 1. Resembling, or pertaining to, a prism; as, a prismatic form or cleavage. 2. Separated or distributed by a prism; formed by a prism; as, prismatic colours. 3. <chemistry> Same as Orthorhombic. <chemistry> Prismatic borax, borax crystallized in the form of oblique prisms, with ten molecules of water; distinguished from octahedral borax. <optics> Prismatic colours, the spectrum produced by the passage of light through a prism. Origin: Cf. F. Prismatique. Source: Websters Dictionary (01 Mar 1998) |