Source : Webster's Revised Unabridged Dictionary (1913)

Mangrove \Man"grove\, n. [Malay manggi-manggi.]
   1. (Bot.) The name of one or two trees of the genus
      {Rhizophora} ({R. Mangle}, and {R. mucronata}, the last
      doubtfully distinct) inhabiting muddy shores of tropical
      regions, where they spread by emitting a["e]rial roots,
      which fasten in the saline mire and eventually become new
      stems. The seeds also send down a strong root while yet
      attached to the parent plant.

   Note: The fruit has a ruddy brown shell, and a delicate white
         pulp which is sweet and eatable. The bark is
         astringent, and is used for tanning leather. The black
         and the white mangrove ({Avicennia nitida} and {A.
         tomentosa}) have much the same habit.

   2. (Zo["o]l.) The mango fish.

Source : WordNet®

mangrove
     n : a tropical tree or shrub bearing fruit that germinates while
         still on the tree and having numerous prop roots that
         eventually form an impenetrable mass and are important in
         land building [syn: {Rhizophora mangle}]