1. A serve that strikes the net before falling into the receiver's court.
4. An airplane that can land on or take off from water.
12. Apparent power to perceive things that are not present to the senses.
15. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
16. An agent that impairs.
17. Being one more than ninety.
18. A former agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States.
19. Diverge from the expected.
20. An associate degree in applied science.
21. A general anesthetic (not a barbiturate) that is administered intravenously or intramuscularly.
23. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
24. Arboreal snake of central and southern Africa whose bite is often fatal.
26. The basic unit of money in Romania.
28. Type genus of the family Unionidae.
29. The dynasty that ruled much of Manchuria and northeastern China from 947 to 1125.
32. A Dravidian language spoken in south central India.
34. Small genus of Eurasian aquatic perennial herbs.
38. To fix or set securely or deeply.
40. Bright and pleasant.
41. The principles of right and wrong that are accepted by an individual or a social group.
42. The quarter of many North African cities in which the citadel is located.
44. Any culture medium that uses agar as the gelling agent.
46. 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.
47. The chief solid component of mammalian urine.
48. A United Nations agency created to assist developing nations by loans guaranteed by member governments.
50. The eleventh month of the civil year.
52. A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material.
53. Being one more than nine.
54. Cubes of meat marinated and cooked on a skewer usually with vegetables.
55. Italian violin maker in Cremona.
57. British statesman and leader of the Labour party who instituted the welfare state in England (1883-1967).
61. (Akkadian) God of wisdom.
62. A river in north central Switzerland that runs northeast into the Rhine.
63. Dress like a dandy.
67. Essential oil or perfume obtained from flowers.
71. Sorghums of China and Manchuria having small white or brown grains (used for food) and dry pithy stalks (used for fodder, fuel and thatching).
74. (informal) Exceptionally good.
77. An island of central Hawaii.
78. Wrap us in a cerecloth, as of a corpse.
79. A language of Australian aborigines.
81. The sign language used in the United States.
82. A person with unusual powers of foresight.
83. A crime that undermines the offender's government.
84. A coenzyme derived from the B vitamin nicotinic acid.

1. An accidental hole that allows something (fluid or light etc.) to enter or escape.
2. A fencing sword similar to a foil but with a heavier blade.
3. Consideration in dealing with others and avoiding giving offence.
4. The granite-like rocks that form the outermost layer of the earth's crust.
5. Preserve a dead body.
6. South American cavy.
7. (in golf) The standard number of strokes set for each hole on a golf course, or for the entire course.
8. The basic unit of money on Malta.
9. A river in central Brazil that flows generally northward (with many falls) to join the Tocantins River.
10. Remaining after all deductions.
11. A Christian recluse.
12. A set of questions or exercises evaluating skill or knowledge.
13. Someone who works (or provides workers) during a strike.
14. A city in Tuscany.
22. Naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion.
25. The large trunk artery that carries blood from the left ventricle of the heart to branch arteries.
27. Having removed clothing.
30. A hostel for pilgrims in Turkey.
31. Not in a specified place physically or mentally.
33. (Irish) Chief god of the Tuatha De Danann.
35. (Zoroastrianism) Title for benevolent deities.
36. Someone who uses another person's words or ideas is they were his own.
37. The French-speaking part of the Canadian Maritime Provinces.
39. An official prosecutor for a judicial district.
43. A foot traveler.
45. An intensely radioactive metallic element that occurs in minute amounts in uranium ores.
49. A light strong brittle gray toxic bivalent metallic element.
51. A crystalline compound found in vanilla beans and some balsam resins.
56. A crime syndicate in the United States.
58. (South African) A camp defended by a circular formation of wagons.
59. The sense organ for hearing and equilibrium.
60. A rapid bustling commotion.
64. Jordan's port.
65. Any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx.
66. A language group of the Hokan family.
68. A tall perennial woody plant having a main trunk and branches forming a distinct elevated crown.
69. Swift timid long-eared mammal larger than a rabbit having a divided upper lip and long hind legs.
70. Dearly loved.
72. An independent agency of the United States government responsible for aviation and spaceflight.
73. A formal association of people with similar interests.
75. A United States unit of weight equivalent to 100 pounds.
76. A chronic skin disease occurring primarily in women between the ages of 20 and 40.
80. An artificial language for international use that rejects rejects all existing words and is based instead on an abstract analysis of ideas.