1. The ratio of the distance traveled (in kilometers) to the time spent traveling (in hours).
4. Any plant of the genus Astilbe having compound leaves and showy panicles of tiny colorful flowers.
11. An amino acid that is found in the central nervous system.
15. A unit of surface area equal to 100 square meters.
16. A tight-fitting garment that covers the body from the shoulders to the thighs (and may have long sleeves or legs reaching down to the ankles).
17. (Babylonian) God of storms and wind.
18. Game in which matchsticks are arranged in rows and players alternately remove one or more of them.
19. Made with sleeves or sleeves especially as specified.
20. A Chadic language spoken south of Lake Chad.
21. Type genus of the Amiidae.
23. A Eurasian plant with small white flowers yielding caraway seed.
25. The most common computer memory which can be used by programs to perform necessary tasks while the computer is on.
26. (Norse mythology) An enormous wolf that was fathered by Loki and that killed Odin.
28. How long something has existed.
29. A light strong brittle gray toxic bivalent metallic element.
31. A nucleic acid that transmits genetic information from DNA to the cytoplasm.
32. A three-tone Chadic language.
34. Someone who works (or provides workers) during a strike.
38. Pronounce with a lowered velum.
42. A sensation (as of a cold breeze or bright light) that precedes the onset of certain disorders such as a migraine attack or epileptic seizure.
43. The god who fathered the islands and gods of Japan with his sister Izanami.
45. A Russian prison camp for political prisoners.
46. (informal) Very good.
47. The basic unit of money in Nigeria.
51. A condition (mostly in boys) characterized by behavioral and learning disorders.
52. An agency of the United Nations affiliated with the World Bank.
53. The batting turn of a cricket player or team.
56. A white soft metallic element that tarnishes readily.
57. A Russian soup usually containing beet juice as a foundation.
61. Unrestrained by convention or morality.
62. A light-weight hat worn in tropical countries for protection from the sun.
63. Muslims collectively and their civilization.
64. Especially of a ship's lines etc.
67. An accountant certified by the state.
69. Romanian violinist and composer (1881-1955).
73. In the Arabian Nights a hero who tells of the fantastic adventures he had in his voyages.
75. Squash bugs.
77. A river in north central Switzerland that runs northeast into the Rhine.
78. A team of professional baseball players who play and travel together.
79. Having the skin scraped off.
81. The compass point that is one point east (clockwise) of due north.
82. English pianist (1890-1965).
83. A festival featuring African-American culture.
84. Gone by.

1. Valuable fiber plant of East Indies now widespread in cultivation.
2. First in rank or degree.
3. A reddish-brown chloride of heme.
4. Thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord.
5. Sottish sailor who was put ashore on a deserted island off the coast of Chile for five years (providing the basis for Daniel Defoe's novel about Robinson Crusoe) (1676-1721).
6. 100 toea equal 1 kina.
7. To say or state again.
8. Washing out a hollow organ (especially the stomach) by flushing with water.
9. Someone who brews beer or ale from malt and hops and water.
10. Tropical starchy tuberous root.
11. An anxiety disorder characterized by chronic free-floating anxiety and such symptoms as tension or sweating or trembling of light-headedness or irritability etc that has lasted for more than six months.
12. The sixth month of the civil year.
13. A small cake leavened with yeast.
14. (Old Testament) In Judeo-Christian mythology.
22. Without qualification.
24. A soft silvery metallic element.
27. (dentistry) A filling consisting of a solid substance (as gold or porcelain) fitted to a cavity in a tooth and cemented into place.
30. (Old Testament) The eldest son of Isaac who would have inherited the Covenant that God made with Abraham and that Abraham passed on to Isaac.
33. The blood group whose red cells carry both the A and B antigens.
35. Stem of plants of the Gramineae.
36. (of farmland) Capable of being farmed productively.
37. Capital and largest city of Iraq.
39. (chemistry) Relating to or containing the azido group N3.
40. The second month of the Moslem calendar.
41. Of or relating to the Chinese people or their language or culture.
44. Strips of potato fried in deep fat.
48. An associate degree in nursing.
49. A resident of Indiana.
50. An island northwest of Wales.
54. A city in southeastern Spain.
55. Same in identity.
58. English historian noted for his constitutional history of medieval England (1825-1901).
59. Large genus of African trees bearing kola nuts.
60. A unit of power equal to 746 watts.
65. A set of related records (either written or electronic) kept together.
66. An onerous or difficult concern.
68. (obstetrics) The number of live-born children a woman has delivered.
70. The capital and largest city of Yemen.
71. Open-heart surgery in which the rib cage is opened and a section of a blood vessel is grafted from the aorta to the coronary artery to bypass the blocked section of the coronary artery and improve the blood supply to the heart.
72. Chocolate cookie with white cream filling.
74. East Indian tree bearing a profusion of intense vermilion velvet-textured blooms and yielding a yellow dye.
76. An edge tool used to cut and shape wood.
80. The use of bacteria or viruses of toxins to destroy men and animals or food.