Ilo GLOSSARY. 
bone. In human osteology this name is 
given to the anterior portion of the body 
of the developing sphenoid bone. 
Pre-sternum.—The sanubrium, which see. 
Process (L. processus, to go forwards).—A _ projecting 
part or protuberance of a bone. 
Processus brevis vel obtusus (L. short or obtuse 
process).—Applied to a short process on the 
malleus. 
Processus cochleariformis (L.spoon-shaped process). 
—A thin plate of bone in the petrous portion 
of the temporal bone, situated above the 
Eustachian canal. 
Processus gracilis (L. slender process)—Applied to 
the long process on the malleus. 
Processus lenticularis (L. lentil-shaped process),— 
The os orbiculare, a process of the incus 
which articulates with the stapes. 
Proccelus (Gr. pro, before ; £oz/os, hollow).—Applied 
to vertebre which have a concavity in their 
centra in front. 
Prognathous (Gr. pro, forward ; grathos, a jaw).— 
Applied to skulls with a large cranio-facial 
angle and protruding upper jaw. 
Pro-otic (Gr. fro, before ; ous, otos, the ear)—A bone 
in some Vertebrata in front of the ear. In 
human anatomy the name is given to one of 
the osseous deposits in the embryonic petro- 
mastoid. 
Propterygial (Gr. pro, before; prerux, a wing)—A 
