| ACROSS
1. A Chadic language spoken south of Lake Chad.
5. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
7. A genus of Strigidae.
11. Fleshy and usually brightly colored cover of some seeds that develops from the ovule stalk and partially or entirely envelopes the seed.
12. A state in midwestern United States.
13. Earlier than the present time.
14. English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984).
16. The persistence of a sound after its source has stopped.
17. A river in north central Switzerland that runs northeast into the Rhine.
18. A city in western Germany near the Dutch and Belgian borders.
22. A rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys.
23. Stout-bodied insect with large membranous wings.
26. A compartment in front of a motor vehicle where driver sits.
29. Lacking or deprive of the sense of hearing wholly or in part.
30. A public promotion of some product or service.
32. Set down according to a plan.
33. A white soft metallic element that tarnishes readily.
34. A metallic element having four allotropic forms.
36. The blood group whose red cells carry both the A and B antigens.
42. Someone who is morally reprehensible.
44. An officer who acts as military assistant to a more senior officer.
47. An associate degree in applied science.
48. A loose sleeveless outer garment made from aba cloth.
49. (Babylonian) God of storms and wind.
50. Mythical bird of prey having enormous size and strength.
51. Having undesirable or negative qualities.
52. A island in the Netherlands Antilles that is the top of an extinct volcano.
53. Antibacterial drug (trade name Nydrazid) used to treat tuberculosis.
54. The blood group whose red cells carry both the A and B antigens.
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DOWN
1. An informal term for a father.
2. An elaborate song for solo voice.
3. The basic unit of money in Ethiopia.
4. A flat wing-shaped process or winglike part of an organism.
5. The branch of computer science that deal with writing computer programs that can solve problems creatively.
6. (Greek mythology) Goddess of the earth and mother of Cronus and the Titans in ancient mythology.
7. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
8. Measuring instrument for indicating speed of rotation.
9. Irish prelate who deduced from the Bible that Creation occurred in the year 4004 BC (1581-1656).
10. Of or relating to or made of stone.
15. Of or relating to or characteristic of the Republic of Chad or its people or language.
19. The elementary stages of any subject (usually plural).
20. A port in western Israel on the Mediterranean.
21. Any of numerous local fertility and nature deities worshipped by ancient Semitic peoples.
24. That is to say.
25. A white metallic element that burns with a brilliant light.
27. Type genus of the Alcidae comprising solely the razorbill.
28. A soft silvery metallic element of the alkali earth group.
31. An official prosecutor for a judicial district.
35. A small cake leavened with yeast.
37. South African term for `boss'.
38. English monk and scholar (672-735).
39. Capital city of the Apulia region on the Adriatic coast.
40. An unstable meson produced as the result of a high-energy particle collision.
41. United States writer (born in Poland) who wrote in Yiddish (1880-1957).
43. An informal term for a father.
45. An agency of the United Nations affiliated with the World Bank.
46. A light touch or stroke.
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