1. A workplace for the conduct of scientific research.
4. South African term for `boss'.
8. Grass mowed and cured for use as fodder.
11. An inflated feeling of pride in your superiority to others.
12. Advanced in years.
13. The compass point that is one point east (clockwise) of due north.
14. Aromatic bulb used as seasoning.
15. A police officer who investigates crimes.
17. (Akkadian) God of wisdom.
18. Sluggish tailless Australian arboreal marsupial with gray furry ears and coat.
20. A strong belief in a supernatural power or powers that control human destiny.
23. Title for a civil or military leader (especially in Turkey).
27. Highly excited.
29. The inner and thicker of the two bones of the human leg between the knee and ankle.
31. The blood group whose red cells carry both the A and B antigens.
33. A river in north central Switzerland that runs northeast into the Rhine.
34. A white soft metallic element that tarnishes readily.
35. A flat wing-shaped process or winglike part of an organism.
38. A radioactive element of the actinide series.
41. A Russian river.
42. Before noon.
43. A small cake leavened with yeast.
45. A person's brother or sister.
48. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
50. Being two more than fifty.
51. A doctor's degree in education.
52. Someone who works (or provides workers) during a strike.
53. A local computer network for communication between computers.

1. An accidental hole that allows something (fluid or light etc.) to enter or escape.
2. A fee charged for exchanging currencies.
3. A cord fastened around the neck with an ornamental clasp and worn as a necktie.
4. A Chadic language spoken south of Lake Chad.
5. How long something has existed.
6. A former agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States.
7. A state in north central United States.
8. A colorless explosive liquid that is volatile and poisonous and foul-smelling.
9. Assist or encourage, usually in some wrongdoing.
10. Not only so, but.
16. A quantity of no importance.
19. A gonadotropic hormone that is secreted by the anterior pituitary.
21. A soft silvery metallic element of the alkali earth group.
22. Any of numerous local fertility and nature deities worshipped by ancient Semitic peoples.
24. Of or relating to the stomach and intestines.
25. A loose sleeveless outer garment made from aba cloth.
26. A room or establishment where alcoholic drinks are served over a counter.
28. Aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar.
30. The United Nations agency concerned with atomic energy.
32. African tree having an exceedingly thick trunk and fruit that resembles a gourd and has an edible pulp called monkey bread.
36. (folklore) A corpse that rises at night to drink the blood of the living.
37. At full speed.
39. A strip of land projecting into a body of water.
40. One thousandth of a second.
41. An international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members.
44. Having undesirable or negative qualities.
46. An agency of the United Nations affiliated with the World Bank.
47. (Norse mythology) One of the Aesir known for his beauty and skill with bow and skis.
49. A bachelor's degree in science.