The Collaborative International Dictionary of English v.0.48:
Mahogany \Ma*hog"a*ny\, Mahogany tree \Ma*hog"a*ny tree`\, n.
[From the South American name.]
1. (Bot.) A large tree of the genus Swietenia (Swietenia
Mahogoni), found in tropical America.
Note: Several other trees, with wood more or less like
mahogany, are called by this name; as, African mahogany
(Khaya Senegalensis), Australian mahogany
(Eucalyptus marginatus), Bastard mahogany (Batonia
apetala of the West Indies), Indian mahogany (Cedrela
Toona of Bengal, and trees of the genera Soymida and
Chukrassia), Madeira mahogany (Persea Indica),
Mountain mahogany, the black or cherry birch (Betula
lenta), also the several species of Cercocarpus of
California and the Rocky Mountains.
2. The wood of the Swietenia Mahogoni. It is of a reddish
brown color, beautifully veined, very hard, and
susceptible of a fine polish. It is used in the
manufacture of furniture.
3. A table made of mahogany wood. [Colloq.]
To be under the mahogany, to be so drunk as to have fallen
under the table. [Eng.]
To put one's legs under some one's mahogany, to dine with