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

tamarack \tam"arack\, n. bot.
   a the american larch; also, the larch of oregon and british
       columbia larix occidentalis. see hackmatack, and
       larch.
   b the black pine pinus murrayana of alaska, california,
       etc. it is a small tree with fine-grained wood.
       1913 webster
see also:
larix occidentalis hackmatack larch pinus murrayana 

[2] : WordNet (r) 2.0

larix occidentalis
     n : tall larch of western north america have pale green sharply
         pointed leaves and oblong cones; an important timber tree
         syn: western larch, western tamarack, oregon larch
see also:
western larch western tamarack oregon larch 

Larix >> L Words
Larix, definition of term: Larix
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