1. arc lamp a lamp that produces light when electric current flows across the gap between two electrodes
  2. archetype something that serves as a model
  3. work camp a camp for trustworthy prisoners employed in government projects
  4. abcoulomb a unit of electrical charge equal to 10 coulombs
  5. clamp a device that holds things firmly together
  6. C-clamp a clamp in the shape of the letter C
  7. rear lamp lamp (usually red) mounted at the rear of a motor vehicle
  8. arcanum information known only to a special group
  9. archaic so extremely old as seeming to belong to an earlier period
  10. irreclaimable insusceptible of reform
  11. archly with playful slyness or roguishness
  12. oil lamp a lamp that burns oil (as kerosine) for light
  13. sarcolemma an extensible membrane enclosing the contractile substance of a muscle fiber
  14. proclaim declare formally
  15. foglamp headlight that provides strong beam for use in foggy weather
  16. auriculate having auricles
  17. arcane requiring secret or mysterious knowledge
  18. preeclampsia abnormal state of pregnancy characterized by hypertension and fluid retention and albuminuria; can lead to eclampsia if untreated
  19. auriculare the craniometric point at the center of the opening of the external acoustic meatus
  20. Arctium burdock