Source : Webster's Revised Unabridged Dictionary (1913)

Amboyna wood \Am*boy"na wood\
   A beautiful mottled and curled wood, used in cabinetwork. It
   is obtained from the {Pterocarpus Indicus} of Amboyna,
   Borneo, etc.

Source : WordNet®

Pterocarpus indicus
     n : tree native to southeastern Asia having reddish wood with a
         mottled or striped black grain [syn: {padauk}, {padouk},
         {amboyna}]