1. Oregon crab apple small tree or shrub of western United States having white blossoms and tiny yellow or red fruit
  2. Oregon grape small shrub with grey-green leaves and yellow flowers followed by glaucous blue berries
  3. hydrogen carbonate a salt of carbonic acid (containing the anion HCO3) in which one hydrogen atom has been replaced; an acid carbonate
  4. American gray birch medium-sized birch of eastern North America having white or pale grey bark and valueless wood; occurs often as a second-growth forest tree
  5. organic process a process occurring in living organisms
  6. American grey birch medium-sized birch of eastern North America having white or pale grey bark and valueless wood; occurs often as a second-growth forest tree
  7. Hermann Minkowski German mathematician (born in Russia) who suggested the concept of four-dimensional space-time (1864-1909)
  8. Marine Corps an amphibious division of the United States Navy
  9. George Enescu Romanian violinist and composer (1881-1955)
  10. American crab apple medium-sized tree of the eastern United States having pink blossoms and small yellow fruit
  11. purging cassia deciduous or semi-evergreen tree having scented sepia to yellow flowers in drooping racemes and pods whose pulp is used medicinally; tropical Asia and Central and South America and Australia
  12. George Walker Bush 43rd President of the United States
  13. working group a group of people working together temporarily until some goal is achieved
  14. organ-grinder a street musician who plays a hand organ or hurdy-gurdy
  15. sour grapes disparagement of something that is unattainable
  16. American crayfish common large crayfishes of eastern North America
  17. arsenic group the univalent group derived from arsine
  18. Virginia creeper common North American vine with compound leaves and bluish-black berrylike fruit
  19. iron carbide a chemical compound that is a constituent of steel and cast iron; very hard and brittle
  20. canker brake North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds