1. A fatal disease of cattle that affects the central nervous system.
4. An emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight).
8. A workplace for the conduct of scientific research.
11. A drug combination found in some over-the-counter headache remedies (Aspirin and Phenacetin and Caffeine).
12. An informal term for a father.
13. An extension at the end and at right angles to the main building.
14. A police officer who investigates crimes.
15. The biblical name for ancient Syria.
16. Title for a civil or military leader (especially in Turkey).
17. A radioactive element of the actinide series.
20. The blood group whose red cells carry both the A and B antigens.
26. A public square with room for pedestrians.
28. The mission in San Antonio where in 1836 Mexican forces under Santa Anna besieged and massacred American rebels who were fighting to make Texas independent of Mexico.
31. Small European freshwater fish with a slender bluish-green body.
32. A soft silvery metallic element of the alkali earth group.
34. According to the Old Testament he was a pagan king of Israel and husband of Jezebel (9th century BC).
35. Before noon.
36. A Russian prison camp for political prisoners.
39. Type genus of the Alcidae comprising solely the razorbill.
43. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
44. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
47. A river in north central Switzerland that runs northeast into the Rhine.
48. Sandwich filled with slices of bacon and tomato with lettuce.
50. A small cake leavened with yeast.
51. An agency of the United Nations affiliated with the World Bank.
52. Aromatic bulb used as seasoning.
53. Someone who works (or provides workers) during a strike.
54. A young woman making her debut into society.

1. A Chadic language spoken south of Lake Chad.
2. A detailed description of design criteria for a piece of work.
3. (computer science) A coding system that incorporates extra parity bits in order to detect errors.
4. A federal agency established to regulate the release of new foods and health-related products.
5. The sense organ for hearing and equilibrium.
6. (Babylonian) God of storms and wind.
7. The most common computer memory which can be used by programs to perform necessary tasks while the computer is on.
8. A unit of length of thread or yarn.
9. Primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves.
10. Divulge information or secrets.
18. Generic term for inflammatory conditions of the skin.
19. West Indian tree having racemes of fragrant white flowers and yielding a durable timber and resinous juice.
21. An enclosed space.
22. The azimuth of a celestial body is the angle between the vertical plane containing it and the plane of the meridian.
23. A Chadic language spoken south of Lake Chad.
24. A white metallic element that burns with a brilliant light.
25. The longer of the two telegraphic signals used in Morse code.
27. A state in midwestern United States.
29. Informal terms for a mother.
30. A Russian river.
33. Naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion.
37. Large sweet juicy hybrid between tangerine and grapefruit having a thick wrinkled skin.
38. A large number or amount.
39. A colorless and odorless inert gas.
40. Set down according to a plan.
41. (of a young animal) Abandoned by its mother and raised by hand.
42. An Arabic speaking person who lives in Arabia or North Africa.
45. Committee formed by a special-interest group to raise money for their favorite political candidates.
46. A compartment in front of a motor vehicle where driver sits.
49. A soft gray malleable metallic element that resembles tin but discolors on exposure to air.