hardwood

Short definition from Wiktionary

Noun

1. 1
   The wood from any dicotyledonous tree, without regard to its hardness.
2. 2
   (in more general use) As the preceding, but limited to those that are commercial timbers, and are at least average in hardness.
3. 3
   The tree or tree species that yields the preceding.
4. 4
   A joint term for the commercial timbers, without distinguishing which.
5. 5
   The sport of basketball, in particular, an indoor basketball court; so named because the floor of an indoor basketball court is normally made of hardwood.

Adjective

1. 1
   Made of interlocking hardwood boards.