1. Ambrosiaceae in some classifications considered a separate family comprising a subgroup of the Compositae including the ragweeds
  2. apparatchik a communist who was a member of the administrative system of a communist party
  3. imbroglio an intricate and confusing interpersonal situation
  4. amperage the strength of an electrical current measured in amperes
  5. umpirage the act of umpiring
  6. jumping orchid orchid having both male and female flowers in the same raceme; when a sensitive projection at the base of the column of the male flower is touched the pollen is suddenly ejected
  7. embargo a government order imposing a trade barrier
  8. empiric derived from experiment and observation rather than theory
  9. improperness an improper demeanor
  10. Schomburgkia genus of tropical American epiphytic orchids with showy racemose flowers
  11. embryologic of an organism prior to birth or hatching
  12. empirically in an empirical manner
  13. impartially in an impartial manner
  14. swamp birch birch of western United States resembling the paper birch but having brownish bark
  15. impoverish make poor
  16. amberjack any of several amber to coppery fork-tailed warm-water carangid fishes
  17. ambrosial worthy of the gods
  18. ambrosian worthy of the gods
  19. embrocate administer an oil or ointment to
  20. empirical derived from experiment and observation rather than theory

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