ODONTOID a.
ntoid bone or to the odontoid process. Odontoid bone (Anat.), a separate bone, in many reptiles, corresponding to the odontoid process. -- Odontoid process, or Odontoid peg (Anat.), the anterior process of the centrum of the second vertebra, or axis, in birds and mammals. See Axis.
OSMIC a.
, which were formerly improperly called osmites. -- Osmic tetroxide (Chem.), a white volatile crystalline substance, OsO4, the most stable and characteristic of the compounds of osmium. It has a burning taste, and gives off a vapor, which is a powerful irritant poison, violently attacking the eyes, and emitting a stro…
PARTING a.
ting strip (Arch.), in a sash window, one of the thin strips of wood let into the pulley stile to keep the sashes apart; also, the thin piece inserted in the window box to separate the weights. -- Parting tool (Mach.), a thin tool, used in turning or planing, for cutting a piece in two.