Diver \Div"er\, n.

1. One who, or that which, dives.

Divers and fishers for pearls. --Woodward.

2. Fig.: One who goes deeply into a subject, study, or business. ``A diver into causes.'' --Sir H. Wotton.

3. (Zo["o]l.) Any bird of certain genera, as Urinator (formerly Colymbus), or the allied genus Colymbus, or Podiceps, remarkable for their agility in diving.

Note: The northern diver (Urinator imber) is the loon; the black diver or velvet scoter (Oidemia fusca) is a sea duck. See Loon, and Scoter.

Source: Webster's Revised Unabridged Dictionary (1913)