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

mourning \mourn"ing\, a.
   1. grieving; sorrowing; lamenting.
      1913 webster

   2. employed to express sorrow or grief; worn or used as
      appropriate to the condition of one bereaved or sorrowing;
      as, mourning garments; a mourning ring; a mourning pin,
      and the like.
      1913 webster

   mourning bride bot., a garden flower scabiosa
      atropurpurea with dark purple or crimson flowers in
      flattened heads.

   mourning dove zool., a wild dove zenaidura macroura
      found throughout the united states; -- so named from its
      plaintive note. called also carolina dove. see illust.
      under dove.

   mourning warbler zool., an american ground warbler
      geothlypis philadelphia. the male has the head, neck,
      and chest, deep ash-gray, mixed with black on the throat
      and chest; other lower parts are pure yellow.
      1913 webster
see also:
mourning bride scabiosa atropurpurea mourning dove zenaidura macroura carolina dove dove 
mourning warbler geothlypis philadelphia 

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

dove \dove\ du^v, n. oe. dove, duve, douve, as. d=ufe;
   akin to os. d=uba, d. duif, ohg. t=uba, g. taube, icel.
   d=ufa, sw. dufva, dan. due, goth. d=ub=o; perh. from
   the root of e. dive.
   1. zool. a pigeon of the genus columba and various
      related genera. the species are numerous.
      1913 webster

   note: the domestic dove, including the varieties called
         fantails, tumblers, carrier pigeons, etc., was
         derived from the rock pigeon columba livia of
         europe and asia; the turtledove of europe, celebrated
         for its sweet, plaintive note, is columba turtur or
         turtur vulgaris; the ringdove, the largest of
         european species, is columba palumbus; the carolina
         dove, or mourning dove, is zenaidura macroura; the
         sea dove is the little auk mergulus alle or alle
         alle. see turtledove, ground dove, and rock
         pigeon. the dove is a symbol of peace, innocence,
         gentleness, and affection; also, in art and in the
         scriptures, the typical symbol of the holy ghost.
         1913 webster

   2. a word of endearment for one regarded as pure and gentle.
      1913 webster

            o my dove, . . . let me hear thy voice. --cant. ii.
                                                  14.
      1913 webster

   3. a person advocating peace, compromise or conciliation
      rather than war or conflict. opposite of hawk.
      pjc

   dove tick zool., a mite argas reflexus which infests
      doves and other birds.

   soiled dove, a prostitute. slang dovecot
see also:
columba fantails tumblers carrier pigeons rock pigeon columba livia 
turtledove columba turtur turtur vulgaris ringdove columba palumbus 
carolina dove mourning dove zenaidura macroura sea dove mergulus alle 
alle alle turtledove ground dove rock pigeon hawk 
dove tick argas reflexus soiled dove 

[3] : WordNet (r) 2.0

mourning dove
     n : wild dove of the united states having a mournful call syn:
         zenaidura macroura
see also:
zenaidura macroura 

Mourning Dove >> M Words
Mourning Dove, definition of term: Mourning Dove
mourning+dove_pag1.html

Dove >> D Words
Dove, definition of term: Dove
dove_pag1.html

Mourning >> M Words
Mourning, definition of term: Mourning
mourning_pag1.html

Mourning Cloak >> M Words
Mourning Cloak, definition of term: Mourning Cloak
mourning+cloak_pag1.html

Straits Of Dove >> S Words
Straits Of Dove, definition of term: Straits Of Dove
straits+of+dove_pag1.html