1. The 7th letter of the Greek alphabet.
4. The elementary stages of any subject (usually plural).
7. A slender double-reed instrument.
11. East Indian tree bearing a profusion of intense vermilion velvet-textured blooms and yielding a yellow dye.
12. The longer of the two telegraphic signals used in Morse code.
13. Deeply moved.
14. A logarithmic unit of sound intensity.
16. Having undesirable or negative qualities.
17. A fractional monetary unit of Japan and Indonesia and Cambodia.
18. The branch of computer science that deal with writing computer programs that can solve problems creatively.
19. Any of a number of fishes of the family Carangidae.
24. A plant hormone promoting elongation of stems and roots.
29. Being ten more than one hundred ninety.
32. The large trunk artery that carries blood from the left ventricle of the heart to branch arteries.
34. The federal agency that insures residential mortgages.
35. A family of Sino-Tibetan languages spoken in southeastern Asia.
42. A loose sleeveless outer garment made from aba cloth.
43. Title for a civil or military leader (especially in Turkey).
46. Aromatic bulb used as seasoning.
47. The compass point that is one point west of due north.
48. A fraudulent business scheme.
49. Resinlike substance secreted by certain lac insects.
50. Being one more than nine.
51. Type genus of the Majidae.
52. A master's degree in fine arts.

1. Tropical starchy tuberous root.
2. A sock with a separation for the big toe.
3. A state in northwestern North America.
4. A public promotion of some product or service.
5. A small cake leavened with yeast.
6. Of or relating to or characteristic of the Republic of Chad or its people or language.
7. A state in northwestern United States on the Pacific.
8. An oil port in southern Iraq.
9. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
10. An inactive volcano in Sicily.
15. The compass point midway between east and southeast.
20. A white metallic element that burns with a brilliant light.
21. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
22. Unknown god.
23. A flat wing-shaped process or winglike part of an organism.
25. A radioactive element of the actinide series.
26. The cry made by sheep.
27. A highly unstable radioactive element (the heaviest of the halogen series).
28. A soft silvery metallic element of the alkali earth group.
30. A city in the European part of Russia.
31. An intersection or crossing of two tracts in the form of the letter X.
33. South American wood sorrel cultivated for its edible tubers.
36. A French abbot.
37. The first light of day.
38. God of love and erotic desire.
39. The inner surface of the hand from the wrist to the base of the fingers.
40. French cabaret singer (1915-1963).
41. Type genus of the Alcidae comprising solely the razorbill.
44. Aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar.
45. A pilgrimage to Mecca.