1. Aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar.
4. Colloquial British abbreviation.
8. A genetic disorder of metabolism.
11. 300 to 3000 megahertz.
12. A cord that is drawn through eyelets or around hooks in order to draw together two edges (as of a shoe or garment).
13. An associate degree in applied science.
14. The upper side of the thighs of a seated person.
15. Ellipse in which the two axes are of equal length.
16. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
19. A resource.
20. Mentally or physically infirm with age.
21. A woman hired to suckle a child of someone else.
23. God of the earth.
24. The elementary stages of any subject (usually plural).
25. A federal agency established to regulate the release of new foods and health-related products.
27. A platform raised above the surrounding level to give prominence to the person on it.
30. 1 species.
35. 1 species.
39. A colorless and odorless inert gas.
40. An intensely radioactive metallic element that occurs in minute amounts in uranium ores.
42. A small cake leavened with yeast.
43. Having undesirable or negative qualities.
45. A sudden short attack.
48. An adult male person (as opposed to a woman).
49. (Hawaiian) A small guitar having four strings.
50. A software system that facilitates the creation and maintenance and use of an electronic database.
51. A loose sleeveless outer garment made from aba cloth.
1. A Russian prison camp for political prisoners.
2. A Bantu language spoken by the Chaga people in northern Tanzania.
3. An abnormally large amount of this fetoprotein in the fetus can signal an abnormality of the neural tube (as spina bifida or anencephaly).
4. A user interface in which you type commands instead of choosing them from a menu or selecting an icon.
5. (astronomy) The angular distance of a celestial point measured westward along the celestial equator from the zenith crossing.
6. English scholastic philosopher and assumed author of Occam's Razor (1285-1349).
7. Tropical American trees with palmately compound leaves and showy bell-shaped flowers.
8. Large burrowing rodent of South and Central America.
9. Bushy plant of Old World salt marshes and sea beaches having prickly leaves.
10. Employed in accomplishing something.
17. An ugly evil-looking old woman.
18. An esoteric or occult matter that is traditionally secret.
22. 10 hao equal 1 dong.
26. Any high mountain.
28. Informal terms for a mother.
29. A small pellet fired from an air rifle or BB gun.
31. A river in north central Switzerland that runs northeast into the Rhine.
32. The hair growing on the lower part of a man's face.
33. Cubes of meat marinated and cooked on a skewer usually with vegetables.
34. A city in southern Turkey on the Seyhan River.
36. Any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses.
37. A metallic element having four allotropic forms.
38. A Tibetan or Mongolian priest of Lamaism.
39. American prizefighter who won the world heavyweight championship three times (born in 1942).
41. Game in which matchsticks are arranged in rows and players alternately remove one or more of them.
44. A Mid-Atlantic state.
46. The blood group whose red cells carry both the A and B antigens.
47. An honorary degree in science.