Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of several aromatic resinous substances used in ointments and incense.
  • n. See balsam poplar.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A bitter balsamic resin or resinous exudation obtained from tropical American trees of the genus Elaphrium (Elaphrum tomentosum and Elaphrum tacamahaca), from East Indian trees of the genus Calophyllum, or from the balsam poplar.
  • n. Any tree yielding tacamahac resin, especially, in North America, the balsam poplar or balm of Gilead (Populus balsamifera).

from the GNU version of the Collaborative International Dictionary of English

  • n. A bitter balsamic resin obtained from tropical American trees of the genus Elaphrium (Elaphrium tomentosum and Elaphrium Tacamahaca), and also from East Indian trees of the genus Calophyllum; also, the resinous exhudation of the balsam poplar.
  • n. Any tree yielding tacamahac resin, especially, in North America, the balsam poplar, or balm of Gilead (Populus balsamifera).

from The Century Dictionary and Cyclopedia

  • n. A gum-resin, the product of several trees, originally that of one or more South American species.
  • n. The balsam poplar, Populus balsamifera, found from the northern borders of the United States to Alaska: in the variety candicans known as balm of Gilead, and common in cultivation. It is a large broad-leaved poplar with fragrant buds.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. poplar of northeastern North America with broad heart-shaped leaves

Etymologies

Spanish tacamaca, tacamahaca, from Nahuatl tecamaca.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Nahuatl tecamac.[2] (Wiktionary)

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