| ACROSS
1. A cord fastened around the neck with an ornamental clasp and worn as a necktie.
5. The blood group whose red cells carry both the A and B antigens.
7. Norse chieftan who became the first duke of Normandy (860-931).
11. South American armadillo with three bands of bony plates.
12. A rare silvery (usually trivalent) metallic element.
13. The United Nations agency concerned with civil aviation.
14. A police officer who investigates crimes.
15. The syllable naming the fourth (subdominant) note of the diatonic scale in solmization.
17. A radioactive element of the actinide series.
22. A large vase that usually has a pedestal or feet.
23. A musical notation written on a staff indicating the pitch of the notes following it.
25. A loose sleeveless outer garment made from aba cloth.
26. Material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds.
29. 1/10 gram.
30. A pilgrimage to Mecca.
32. Informal terms for a mother.
34. An associate degree in applied science.
36. Open-heart surgery in which the rib cage is opened and a section of a blood vessel is grafted from the aorta to the coronary artery to bypass the blocked section of the coronary artery and improve the blood supply to the heart.
40. Title for the former hereditary monarch of Iran.
42. Aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar.
44. The cry made by sheep.
45. The sense organ for hearing and equilibrium.
47. A cgs unit of work or energy.
48. Counting the number of white and red blood cells and the number of platelets in 1 cubic millimeter of blood.
49. A small cake leavened with yeast.
50. A nucleic acid consisting of large molecules shaped like a double helix.
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DOWN
1. A Chadic language spoken south of Lake Chad.
2. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
3. Resinlike substance secreted by certain lac insects.
4. A colorless and odorless inert gas.
5. Title for a civil or military leader (especially in Turkey).
6. A soft silvery metallic element of the alkali earth group.
7. The basic unit of money in Iran.
8. The organ of sight (`peeper' is an informal term for `eye').
9. A person afflicted with leprosy.
10. A warm dry wind that blows down the northern slopes of the Alps.
16. (Greek mythology) Goddess of the earth and mother of Cronus and the Titans in ancient mythology.
18. A port in western Israel on the Mediterranean.
19. English writer and a central member of the Fabian Society (1858-1943).
20. Not only so, but.
21. Unknown god.
24. A gonadotropic hormone that is secreted by the anterior pituitary.
27. A federal agency established to regulate the release of new foods and health-related products.
28. (computer science) A coding system that incorporates extra parity bits in order to detect errors.
31. Tree of the West Indies and northern South America bearing succulent edible orange-sized fruit.
32. A soft silvery metallic element of the alkali earth group.
33. According to the Old Testament he was a pagan king of Israel and husband of Jezebel (9th century BC).
34. A radioactive element of the actinide series.
35. Someone who works (or provides workers) during a strike.
37. In bed.
38. An outlying farm building for storing grain or animal feed and housing farm animals.
39. Mentally or physically infirm with age.
41. Electrical conduction through a gas in an applied electric field.
43. A flat wing-shaped process or winglike part of an organism.
44. A silvery ductile metallic element found primarily in bauxite.
46. A logarithmic unit of sound intensity.
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