Oxide of Zinc. A white pigment which is more permanent in resisting gases than the white lead.
Oxides of Copper. The pigments derived from these were well known to the ancients. Modern pigments are Blue Verditer, Brunswick Green, Verdigris, and Emerald or Scheele’s Green (q.v.).
Oxybaphoi, Gr. Small cymbals in the shape of vinegar-saucers.
Oxybaphon (ὀξυβάφον). A Greek term applied to a bell-shaped vase with a plain foot and a moulded rim, synonymous with the Latin Acetabulum (q.v.).
Oyelet, Oylet. (See Oillets.)
Oyer and Terminer. Ancient law-French. The words mean to hear and to determine, and express the authority or commission given to an appointed court of justice.
P.
Packfong or Pakfong. A Chinese name for Argentine, or German silver.
Pæan (Gr. παιάν). A hymn to Apollo, of gratitude or propitiation. It was also used as a battle-song before and after an engagement.
Pænula, R. A thick cloak with a hole to put the head through; it was furnished with a hood, and was worn in travelling, or as a protection against cold and rain.