1. Nocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate.
4. A woman hired to suckle a child of someone else.
8. The habitation of wild animals.
11. A flat wing-shaped process or winglike part of an organism.
12. A quantity of no importance.
13. An agency of the United Nations affiliated with the World Bank.
14. A fraudulent business scheme.
16. A lipoprotein that transports cholesterol in the blood.
17. An associate degree in applied science.
18. A deep bow.
20. A subsidiary proposition that is assumed to be true in order to prove another proposition.
22. An ancient musical horn made from the horn of a ram.
23. Primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves.
26. A member of a seafaring group of North American Indians who lived on the Pacific coast of British Columbia and southwestern Alaska.
30. An independent agency of the United States government responsible for collecting and coordinating intelligence and counterintelligence activities abroad in the national interest.
31. The elementary stages of any subject (usually plural).
32. 10 grams.
34. (Akkadian) God of wisdom.
36. Someone who works (or provides workers) during a strike.
40. Any of numerous local fertility and nature deities worshipped by ancient Semitic peoples.
44. Offering fun and gaiety.
47. A city in the European part of Russia.
48. White crystalline compound used as a food additive to enhance flavor.
50. The most common computer memory which can be used by programs to perform necessary tasks while the computer is on.
51. A unit of length of thread or yarn.
52. Any of a number of fishes of the family Carangidae.
53. A constellation in the southern hemisphere near Telescopium and Norma.

1. Having or denoting a low vocal or instrumental range.
2. Type genus of the Alcidae comprising solely the razorbill.
3. An official language of the Republic of South Africa.
4. An associate degree in nursing.
5. A port in southern Sweden.
6. A condition (mostly in boys) characterized by behavioral and learning disorders.
7. (Jewish cookery) A loaf of white bread containing eggs and leavened with yeast.
8. The length of a straight line passing through the center of a circle and connecting two points on the circumference.
9. Mild yellow Dutch cheese made in balls.
10. An independent agency of the United States government responsible for aviation and spaceflight.
15. An independent group of closely related Chadic languages spoken in the area between the Biu-Mandara and East Chadic languages.
19. Having the leading position or higher score in a contest.
21. A period marked by distinctive character or reckoned from a fixed point or event.
24. Being one more than fifty.
25. A rare silvery (usually trivalent) metallic element.
27. A state in the Rocky Mountains.
28. An official prosecutor for a judicial district.
29. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
33. A loose sleeveless outer garment made from aba cloth.
35. The blood group whose red cells carry both the A and B antigens.
37. (law) A comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy.
38. Primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves.
39. An informal term for a father.
41. 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.
42. (old-fashioned) At or from or to a great distance.
43. A Tibetan or Mongolian priest of Lamaism.
45. A former agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States.
46. A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material.
49. A bachelor's degree in science.
50. A polyvalent metallic element that resembles chromium and tungsten in its properties.