[1] : The Collaborative International Dictionary of English v.0.48

loon \loon\, n. for older loom, icel. l=omr; akin to dan. 
   sw. lom. zool.
   any one of several aquatic, wed-footed, northern birds of the
   genus urinator formerly colymbus, noted for their
   expertness in diving and swimming under water. the common
   loon, or great northern diver urinator imber, or colymbus
   torquatus, and the red-throated loon or diver urinator
   septentrionalis, are the best known species. see diver.
   1913 webster
see also:
urinator colymbus urinator imber colymbus torquatus urinator septentrionalis diver 

[2] : The Collaborative International Dictionary of English v.0.48

diver \div"er\, n.
   1. one who, or that which, dives.
      1913 webster

            divers and fishers for pearls.        --woodward.
      1913 webster

   2. fig.: one who goes deeply into a subject, study, or
      business. "a diver into causes." --sir h. wotton.
      1913 webster

   3. zool. any bird of certain genera, as urinator
      formerly colymbus, or the allied genus colymbus, or
      podiceps, remarkable for their agility in diving.
      1913 webster

   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.
         1913 webster
see also:
urinator colymbus podiceps urinator imber oidemia fusca loon 
scoter 

Urinator >> U Words
Urinator, definition of term: Urinator
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