1. An easy return of a tennis ball in a high arc.
4. Flightless birds having flat breastbones lacking a keel for attachment of flight muscles.
10. A defensive missile designed to shoot down incoming intercontinental ballistic missiles.
13. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
14. United States jazz musician who influenced the style of Louis Armstrong (1885-1938).
15. A unit of force equal to the force exerted by gravity.
16. A river in north central Switzerland that runs northeast into the Rhine.
17. 1 species.
18. The network in the reticular formation that serves an alerting or arousal function.
19. Austrian painter influenced by art nouveau (1862-1918).
21. Of or relating to a dialect of Sotho or the Bantu people who speak it.
23. Title for a civil or military leader (especially in Turkey).
26. (physics) Deformation of a physical body under the action of applied forces.
29. Kamarupan languages spoken in northeastern India and western Burma.
33. A mound of stones piled up as a memorial or to mark a boundary or path.
35. Characterized by undue haste and lack of thought or deliberation.
37. The elementary stages of any subject (usually plural).
39. An affirmative.
40. A disease of plants characterized by the gradual dying of the young shoots starting at the tips and progressing to the larger branches.
43. A city in the Saxony region of Germany on the Saale River.
45. A loose sleeveless outer garment made from aba cloth.
47. According to the Old Testament he was a pagan king of Israel and husband of Jezebel (9th century BC).
50. The compass point that is one point east (clockwise) of due north.
52. Tropical starchy tuberous root.
56. English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984).
58. (prefix) Opposite or opposing or neutralizing.
61. An associate degree in applied science.
62. (Irish) Mother of the ancient Irish gods.
63. In a foreign country.
65. A mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues.
66. A doctor's degree in dental surgery.
67. A member of an agricultural people of southern India.
68. The longer of the two telegraphic signals used in Morse code.
1. An accidental hole that allows something (fluid or light etc.) to enter or escape.
2. A translucent mineral consisting of hydrated silica of variable color.
3. Capital city of the Apulia region on the Adriatic coast.
4. German physicist who discovered x-rays and developed roentgenography (1845-1923).
5. A flat wing-shaped process or winglike part of an organism.
6. A native American tent.
7. Any of various coarse shrubby plants of the genus Iva with small greenish flowers.
8. The kind and number and arrangement of teeth (collectively) in a person or animal.
9. Remove from memory or existence.
10. A city in northern India.
11. Any of various edible seeds of plants of the family Leguminosae.
12. Flat tableland with steep edges.
20. A flat-bottomed volcanic crater that was formed by an explosion.
22. A baton used by a magician or water diviner.
24. An associate degree in nursing.
25. A soft silvery metallic element of the alkali metal group.
27. A sock with a separation for the big toe.
28. Grains used as food either unpolished or more often polished.
30. Any group or radical of the form RCO- where R is an organic group.
31. A Gaelic-speaking Celt in Ireland or Scotland or the Isle of Man.
32. A domed or vaulted recess or projection on a building especially the east end of a church.
34. East Indian tree bearing a profusion of intense vermilion velvet-textured blooms and yielding a yellow dye.
36. Title for a civil or military leader (especially in Turkey).
38. The act of scanning.
41. A small cake leavened with yeast.
42. The blood group whose red cells carry both the A and B antigens.
44. Used of a single unit or thing.
46. A seaport in northwestern Italy.
48. Located at or near the back of an animal.
49. A river that rises in northeastern Turkey (near the source of the Euphrates) and flows generally eastward through Armenia to the Caspian Sea.
51. A lyric poet.
53. Any of a group of Indic languages spoken in Kashmir and eastern Afghanistan and northern Pakistan.
54. A Chadic language spoken south of Lake Chad.
55. United States writer (born in Poland) who wrote in Yiddish (1880-1957).
57. A compartment in front of a motor vehicle where driver sits.
59. A label made of cardboard or plastic or metal.
60. An agency of the United Nations affiliated with the World Bank.
64. A soft silvery metallic element of the alkali earth group.