D defs.my
Entry 3 senses Webster, 1913

Diver

/dīv'-ẽr/ · Div·er · IPA /ˈdaɪ̯və(ɹ)/
01 n. One who, or that which, dives.
  1. 1.
    One who, or that which, dives.
    Divers and fishers for pearls.” Woodward.
  2. 2.
    Fig.: One who goes deeply into a subject, study, or business.
  3. 3.
    Any bird of certain genera, as Urinator (formerly Colymbus), or the allied genus Colymbus, or Podiceps, remarkable for their agility in diving.(Zool.)