Found 2 items, similar to hackmatack.
English → English (WordNet) Definition: hackmatack hackmatack n : poplar of northeastern North America with broad heart-shaped leaves [syn: balsam poplar, tacamahac, Populus balsamifera ]
English → English (gcide) Definition: Hackmatack Hackmatack \Hack"ma*tack`\ (h[a^]k"m[.a]*t[a^]k`), n. [Of American Indian origin.] (Bot.) The American larch (Larix Americana), a coniferous tree with slender deciduous leaves; also, its heavy, close-grained timber. Called also tamarack. [1913 Webster]