Vocabulary : Pyridyl to Pyritohedral
Pyridyl : A hypothetical radical, C5H4N, regarded as the essential residue of pyridine, and analogous to phenyl.Pyriform : Having the form of a pear; pear-shaped.
Pyritaceous : Of or pertaining to pyrites. See Pyritic.
Pyrite : A common mineral of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system; iron pyrites; iron disulphide.
Pyrites : of Pyrite ;; A name given to a number of metallic minerals, sulphides of iron, copper, cobalt, nickel, and tin, of a white or yellowish color.
