Dictionary
dive•mas•ter
Pronunciation: (dīv'mas"tur, -mä"stur), [key]—
n.
a professional qualified to oversee scuba diving operations, as in salvage work or at a resort, and responsible for procedures and safety, monitoring the whereabouts of divers underwater or at the surface, and making rescues when necessary.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.