/grees"wood'/ , n.
1. a shrub, Sarcobatus vermiculatus, of the goosefoot family, growing in alkaline regions of the western U.S., containing a small amount of oil.
2. any of various similar shrubs.
3. See white sage (def. 1).
4. Western U.S. mesquite. Also called greasebush /grees"boosh'/ .
[ 1830-40, Amer.; GREASE + WOOD 1 ]