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1. 300 to 3000 megahertz.
4. Scottish writer of rustic verse (1770-1835).
8. An insecticide that is also toxic to animals and humans.
11. A colloid in a more solid form than a sol.
12. South American armadillo with three bands of bony plates.
13. A plant hormone promoting elongation of stems and roots.
14. A mountainous landlocked communist state in southeastern Asia.
16. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
17. A gradual decline (in size or strength or power or number).
18. A medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning).
20. A logarithmic unit of sound intensity.
22. The branch of computer science that deal with writing computer programs that can solve problems creatively.
23. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
24. The fatty flesh of eel.
25. African tree having an exceedingly thick trunk and fruit that resembles a gourd and has an edible pulp called monkey bread.
29. The elementary stages of any subject (usually plural).
30. The elementary stages of any subject (usually plural).
31. A river in north central Switzerland that runs northeast into the Rhine.
33. A linguistic element added to a word to produce an inflected or derived form v 1.
38. A radioactive element of the actinide series.
40. Of or relating to a septum.
42. A small cake leavened with yeast.
45. A lipoprotein that transports cholesterol in the blood.
46. Top part of an apron.
48. A constellation in the southern hemisphere near Telescopium and Norma.
49. An inflammatory complication of leprosy that results in painful skin lesions on the arms and legs and face.
50. An informal term for a father.
51. The network in the reticular formation that serves an alerting or arousal function.
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1. Large sweet juicy hybrid between tangerine and grapefruit having a thick wrinkled skin.
2. A collection of objects laid on top of each other.
3. A flat mass of ice (smaller than an ice field) floating at sea.
4. (astronomy) The angular distance of a celestial point measured westward along the celestial equator from the zenith crossing.
5. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
6. A conspicuous disparity or difference as between two figures.
7. At surface level.
8. Small cubes with 1 to 6 spots on the faces.
9. A Chadic language spoken south of Lake Chad.
10. A sock with a separation for the big toe.
15. Someone who works (or provides workers) during a strike.
19. Title for a civil or military leader (especially in Turkey).
21. (Scottish) Bluish-black or gray-blue.
26. The blood group whose red cells carry both the A and B antigens.
27. South American wood sorrel cultivated for its edible tubers.
28. The Tibeto-Burman language spoken in the Dali region of Yunnan.
32. European herb resembling vetch.
34. A federal agency established to regulate the release of new foods and health-related products.
35. Essential oil or perfume obtained from flowers.
36. A genus of Pyralidae.
37. A republic in southeastern Europe on the southern part of the Balkan peninsula.
39. (Old Testament) Cain and Abel were the first children of Adam and Eve born after the Fall of Man.
41. Tropical starchy tuberous root.
43. Any of various units of capacity.
44. A master's degree in business.
47. A public promotion of some product or service.
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