GLOSSARY 477 



CoUat'erals. [From the Lat. con, " together," and lateralis, " of the side."] 

 Situated at the side ; hence, also secondary. 



Co'lon. [Gr. kolon.] That portion of the large intestine which extends 

 from the caecum to the rectum. 



Colum'nae Car'neae. [Lat.] " Fleshy columns " ; muscular projections 

 in the ventricles of the heart. 



Com'missure. [From the Lat. con, " together," and njitto, missum, to 

 " send."] A joining or uniting together. Something which joins 

 together. 



Con'cave. [From the Lat. con, " together," and cavus, a " hollow."] The 

 interior of a curved surface. 



Con'cha. [Lat. a " shell."] A term applied to the hollow portion of 

 the external ear. 



Con'dyloid. [From the Gr. kondulos, a " knob," or " knuckle," and 

 eidos, " hkeness."] A term applied to joints and processes of bone 

 having flattened knobs or heads. 



Congen'ital. [From the Lat. con, " together," and gignere, to " beget."] 

 Existing from birth. 



Conjuncti'va. [From the Lat. con, " together," and jungo, junctum, to 

 " join."] A term appUed to the delicate mucous membrane which 

 lines both eyeUds and covers the external portion of the eyeball. 



Contig'uous. [From the Lat. contiguus, akin to contingere, " to touch on 

 all sides."] Adjacent; near; in actual contact. 



Convec'tion. [From the Lat. con, "together," and vehere, to " carry."] A 

 process of transfer or transmission as of heat or electricity. The 

 term " convection currents " is used in the text, and appUes to cur- 

 rents of air produced by differences in temperature and density. 

 Warm air expands, becomes less dense, and is forced upward by the 

 cooler air, which is heavier and sinks down. In this way convection 

 currents are established. 



Converge'. [From the Lat. con, " together," vergere, to " inchne."] To 

 join at a point. 



Con'vex. [From the Lat. convexus, " vaulted."] The exterior of a curved 

 surface. 



Convolu'tions. [From the Lat. con, and vol'vo, to " roU together."] The 

 tortuous foldings of the external surface of the brain. 



Cor'acoid. [From the Gr. korakos, a " crow," and eidos, " form."] Pro- 

 cess of the scapula, so named because it was thought to be the shape 

 of a crow's beak. 



