1. A defensive missile designed to shoot down incoming intercontinental ballistic missiles.
4. Any of various spiny trees or shrubs of the genus Acacia.
10. Goddess of criminal rashness and its punishment.
13. Of or relating to a member of the Buddhist people inhabiting the Mekong river in Laos and Thailand.
14. A large galleon sailed in the Mediterranean as a merchantman.
15. In this sense `Gentile' denotes a Christian as contrasted with a Jew.
16. Belonging to or on behalf of a specified person (especially yourself).
17. Fragrant resin obtain from trees of the family Burseraceae and used as incense.
19. Someone who works (or provides workers) during a strike.
21. In a forward direction.
23. The seventh month of the Moslem calendar.
25. Light informal conversation for social occasions.
26. An informal term for a father.
28. A compartment in front of a motor vehicle where driver sits.
30. Type genus of the family Arcidae.
34. City in Sudan.
36. French philosopher and theologian.
38. A colorless and odorless inert gas.
39. Marked by lack of intellectual depth.
42. Greek mythology.
45. (Brit) A tough youth of 1950's and 1960's wearing Edwardian style clothes.
46. The state prevailing during the absence of war.
48. A mountain range in western Russia extending from the arctic to the Caspian Sea.
52. Mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction.
54. Atlantic coast round clams with hard shells.
58. A fit of shivering.
59. A Hindu prince or king in India.
62. Plant with an elongated head of broad stalked leaves resembling celery.
63. Goddess of the dead and queen of the underworld.
65. On or toward the lee.
66. A constellation in the southern hemisphere near Telescopium and Norma.
67. Jordan's port.
68. Type genus of the Alcidae comprising solely the razorbill.

1. By bad luck.
2. The Tibeto-Burman language spoken in the Dali region of Yunnan.
3. Any of various aromatic herbs of the genus Monarda.
4. (informal) Of the highest quality.
5. A high-crowned black cap (usually made of felt or sheepskin) worn by men in Turkey and Iran and the Caucasus.
6. A unit of surface area equal to 100 square meters.
7. Fabric dyed with splotches of green and brown and black and tan.
8. The formation of frost or ice on a surface.
9. A state in northwestern North America.
10. Any culture medium that uses agar as the gelling agent.
11. Scottish chemist noted for his research into the structure of nucleic acids (born in 1907).
12. Opinion or judgment.
18. An esoteric or occult matter that is traditionally secret.
20. Any of numerous local fertility and nature deities worshipped by ancient Semitic peoples.
22. A state in northwestern United States on the Pacific.
24. A soft silvery metallic element of the alkali earth group.
27. A port in southwestern Scotland.
29. An imaginary elephant that appears in a series of French books for children.
31. Deeply moved.
32. A member of an Algonquian people living in central Canada.
33. (Babylonian) God of storms and wind.
35. Be in accord.
37. Half the width of an em.
40. A white soft metallic element that tarnishes readily.
41. A hospital unit staffed and equipped to provide intensive care.
43. A cooler darker spot appearing periodically on the surface of the sun.
44. A dull persistent (usually moderately intense) pain.
47. Having or showing keen interest or intense desire or impatient expectancy.
49. Jordan's port.
50. A trivalent metallic element of the rare earth group.
51. The capital and largest city of Yemen.
52. A colorless and odorless inert gas.
53. (South African) A journey by ox wagon (especially an organized migration by a group of settlers).
55. An interior passage or corridor onto which rooms open.
56. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
57. (Greek mythology) Goddess of the earth and mother of Cronus and the Titans in ancient mythology.
60. A loose sleeveless outer garment made from aba cloth.
61. A sharp hand gesture (resembling a blow).
64. Unknown god.