1. A tight-fitting headdress.
4. (anatomy) Of or relating to a chiasm.
12. Aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar.
15. An awkward stupid person.
16. Burrowing diurnal meerkat of southern Africa.
17. A river in north central Switzerland that runs northeast into the Rhine.
18. A unit of surface area equal to 100 square meters.
19. Any of various thermoplastic resins used to make things.
20. Occupy in an agreeable, entertaining or pleasant fashion.
22. United States tennis player (born in Czechoslovakia) who won several singles championships.
25. (British) Traditional jazz as revived in the 1950s.
27. Any place of complete bliss and delight and peace.
28. Submerged aquatic plant having narrow leaves and small flowers.
31. The animal order including amoebas.
33. Mail sent by a sender at one time.
35. An indehiscent fruit derived from a single ovary having one or many seeds within a fleshy wall or pericarp.
36. The Latin name for England.
38. The basic monetary unit in many countries.
42. An intensely radioactive metallic element that occurs in minute amounts in uranium ores.
47. A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography).
48. A flat wing-shaped process or winglike part of an organism.
52. Goat grass.
54. A country on the Comoro Islands.
56. In bed.
57. Not reflecting light.
58. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
59. (in golf) The standard number of strokes set for each hole on a golf course, or for the entire course.
64. (Jewish cookery) A loaf of white bread containing eggs and leavened with yeast.
66. A soft silvery metallic element of the alkali earth group.
72. A loose sleeveless outer garment made from aba cloth.
73. Preaching the gospel of Christ in the manner of the early church.
76. A Chadic language spoken in northern Nigeria.
77. The compass point that is one point north of due east.
78. Related to or characteristic of or written in Amharic.
79. Acute lung injury characterized by coughing and rales.
80. A master's degree in education.
81. A baby from birth to four weeks.
82. South African term for `boss'.

1. Fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period.
2. A river in north central Switzerland that runs northeast into the Rhine.
3. 100 pfennigs equal 1 Deutsche Mark.
4. A soft silver-white ductile metallic element (liquid at normal temperatures).
5. Czechoslovakian religious reformer who anticipated the Reformation.
6. A self-funded retirement plan that allows you to contribute a limited yearly sum toward your retirement.
7. Channel into a new direction.
8. Scarabaeid beetle considered divine by ancient Egyptians.
9. The capital of Bahrain.
10. A highly unstable radioactive element (the heaviest of the halogen series).
11. A unit of length of thread or yarn.
12. Spanish architect who was a leading exponent of art nouveau in Europe (1852-1926).
13. Covered or protected with or as if with a case.
14. A particular environment or walk of life.
21. A long-acting crystalline barbiturate (trade name Mebaral) used as a sedative and as an anticonvulsant in the treatment of epilepsy.
23. Behave carelessly or indifferently.
24. Being three more than fifty.
26. A licensed medical practitioner.
29. (Irish) Mother of the ancient Irish gods.
30. 1/10 gram.
32. Liquid containing proteins and electrolytes including the liquid in blood plasma and interstitial fluid.
34. (electronics) Of a circuit or device having an output that is proportional to the input.
37. An official prosecutor for a judicial district.
39. Any property detected by the olfactory system.
40. A small Asian country high in the Himalayas between India and Tibet.
41. Social status or position conferred by a system based on class.
43. (computer science) The rate at which data is transferred (as by a modem).
44. Any of numerous local fertility and nature deities worshipped by ancient Semitic peoples.
45. Cubes of meat marinated and cooked on a skewer usually with vegetables.
46. Advanced in years.
49. Before noon.
50. Of or relating to the peoples who speak the language of the Arawak.
51. Minimal meaningful language unit.
53. A state in the Rocky Mountains.
55. A translucent mineral consisting of hydrated silica of variable color.
60. Inhabitant of the island of Cebu.
61. African tree having an exceedingly thick trunk and fruit that resembles a gourd and has an edible pulp called monkey bread.
62. Any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream.
63. A hard brittle blue-white multivalent metallic element.
65. A French abbot.
67. A city in northern India.
68. The rate of moving (especially walking or running).
69. (obstetrics) The number of live-born children a woman has delivered.
70. Tropical starchy tuberous root.
71. (comparative of `little' usually used with mass nouns) Quantifier meaning not as great in amount or degree.
74. The 17th letter of the Greek alphabet.
75. An engineering university in Cambridge.