1. (Norse mythology) One of the Aesir known for his beauty and skill with bow and skis.
4. A code of letters and digits added to a postal address to aid in the sorting of mail.
12. A master's degree in library science.
15. Flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes.
16. An agent that counteracts or neutralizes acidity (especially in the stomach).
17. A former agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States.
18. (British) Your grandmother.
19. An airplane that can land on or take off from water.
20. A nucleic acid consisting of large molecules shaped like a double helix.
21. Jordan's port.
23. A small drink of liquor.
24. Relating to the Andes and their inhabitants.
26. Any of various fissiped mammals with nonretractile claws and typically long muzzles.
28. A river in north central Switzerland that runs northeast into the Rhine.
30. Before noon.
32. Infectious disease caused by a species of chlamydia bacterium.
33. A metric unit of length equal to one hundredth of a meter.
38. With no effort to conceal.
40. A nonmetallic largely pentavalent heavy volatile corrosive dark brown liquid element belonging to the halogens.
42. A city of east central Mexico (west of Veracruz).
43. (botany) Of or relating to the axil.
45. A kind of person.
47. A rapid escape (as by criminals).
48. An informal term for a father.
49. Spanish painter best known for his portraits (1746-1828).
52. At right angles to the length of a ship or airplane.
55. The highest level or degree attainable.
57. A sudden short attack.
58. (aeronautics) Designating an airship having a shape maintained only by internal gas pressure and without a supporting structure.
61. The blood group whose red cells carry both the A and B antigens.
62. A woman hired to suckle a child of someone else.
63. A loud resonant repeating noise.
64. Any of the short curved hairs that grow from the edges of the eyelids.
66. Large mackerel with long pointed snout.
69. Of or relating to the ancient Aramaic languages.
73. A loose sleeveless outer garment made from aba cloth.
74. Heater that removes ice or frost (as from a windshield or a refrigerator or the wings of an airplane).
77. Wife of Balder.
78. The law enforcement agency in the Justice Department.
79. Oldest known reptiles.
81. A graphical recording of the cardiac cycle produced by an electrocardiograph.
82. 100 fen equal 1 yuan.
83. A great raja.
84. A manner of performance.

1. The inner and longer of the two bones of the human forearm.
2. An accidental hole that allows something (fluid or light etc.) to enter or escape.
3. Ions are accelerated along a linear path by voltage differences on electrodes along the path.
4. Large African antelope with long straight nearly upright horns.
5. Used of a single unit or thing.
6. A support or foundation.
7. A native American tent.
8. A high-crowned black cap (usually made of felt or sheepskin) worn by men in Turkey and Iran and the Caucasus.
9. South American wood sorrel cultivated for its edible tubers.
10. The basic unit of money in Yemen.
11. Any place of complete bliss and delight and peace.
12. Produced by a manufacturing process.
13. A Russian river.
14. The act of scanning.
22. (Norse mythology) God of light and peace and noted for his beauty and sweet nature.
25. Portuguese explorer who in 1488 was the first European to get round the Cape of Good Hope (thus establishing a sea route from the Atlantic to Asia) (1450-1500).
27. Being one more than three.
29. In a murderous frenzy as if possessed by a demon.
31. The capital and largest city of Equatorial Guinea on the island of Bioko in the Gulf of Guinea.
34. A motor vehicle with two wheels and a strong frame.
35. A deep bow.
36. Inability to walk.
37. The 12th letter of the Hebrew alphabet.
39. Filled with a great quantity.
41. Joint capital (with Mecca) of Saudi Arabia located in the central oasis.
44. 1/10 gram.
46. Resinlike substance secreted by certain lac insects.
50. Bar temporarily.
51. The Creator.
53. Type genus of the family Arcidae.
54. Dam to make a millpond to provide power for a water mill.
56. An infective disease caused by sporozoan parasites that are transmitted through the bite of an infected Anopheles mosquito.
59. Soft blue-gray mineral.
60. (Old Testament) The first of the major Hebrew prophets (8th century BC).
65. The capital and largest city of Yemen.
67. A French abbot.
68. Characteristic of false pride.
70. Again but in a new or different way.
71. A ruler of the Inca Empire (or a member of his family).
72. Showing self-interest and shrewdness in dealing with others.
75. An accountant certified by the state.
76. The rate at which red blood cells settle out in a tube of blood under standardized conditions.
80. A person who announces and plays popular recorded music.