Source : Webster's Revised Unabridged Dictionary (1913)

Bamboo \Bam*boo"\, v. t.
   To flog with the bamboo.

Bamboo \Bam*boo"\, n. [Malay bambu, mambu.] (Bot.)
   A plant of the family of grasses, and genus {Bambusa},
   growing in tropical countries.

   Note: The most useful species is {Bambusa arundinacea}, which
         has a woody, hollow, round, straight, jointed stem, and
         grows to the height of forty feet and upward. The
         flowers grow in large panicles, from the joints of the
         stalk, placed three in a parcel, close to their
         receptacles. Old stalks grow to five or six inches in
         diameter, and are so hard and durable as to be used for
         building, and for all sorts of furniture, for water
         pipes, and for poles to support palanquins. The smaller
         stalks are used for walking sticks, flutes, etc.

Source : WordNet®

bamboo
     n 1: the hard woody stems of bamboo plants; used in construction
          and crafts and fishing poles
     2: woody tropical grass having hollow woody stems; mature canes
        used for construction and furniture