| ACROSS
1. 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 numbered compartment in a post office where mail is put to be called for.
7. A wine bottle made of leather.
11. The sound made by a cow or bull.
12. A flat wing-shaped process or winglike part of an organism.
13. South American armadillo with three bands of bony plates.
14. Bulky grayish-brown eagle with a short wedge-shaped white tail.
15. A compartment in front of a motor vehicle where driver sits.
16. (Greek mythology) The goddess of youth and spring.
17. An indehiscent fruit derived from a single ovary having one or many seeds within a fleshy wall or pericarp.
19. Any of various spiny trees or shrubs of the genus Acacia.
21. A woman hired to suckle a child of someone else.
23. A very poisonous metallic element that has three allotropic forms.
24. A loose sleeveless outer garment made from aba cloth.
26. (folklore) A corpse that rises at night to drink the blood of the living.
30. A Bantu language spoken by the Chaga people in northern Tanzania.
33. Resinlike substance secreted by certain lac insects.
34. Title for a civil or military leader (especially in Turkey).
35. The blood group whose red cells carry both the A and B antigens.
36. A tax on employees and employers that is used to fund the Social Security system.
42. Hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus.
44. A river in north central Switzerland that runs northeast into the Rhine.
46. Towards the side away from the wind.
47. An informal term for a father.
48. An Arabic speaking person who lives in Arabia or North Africa.
49. A local computer network for communication between computers.
50. (prefix) Coming before or being preliminary or preparatory.
51. A Tibetan or Mongolian priest of Lamaism.
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DOWN
1. Naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion.
2. Marine microorganism having a calcareous shell with openings where pseudopods protrude.
3. A member of the Siouan people of the Missouri river valley in NE Nebraska.
4. Large burrowing rodent of South and Central America.
5. Leaf or strip from a leaf of the talipot palm used in India for writing paper.
6. A small cake leavened with yeast.
7. The dialect of Malay used as the national language of the Republic of Indonesia or of Malaysia.
8. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
9. A sock with a separation for the big toe.
10. A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography).
18. A Bantu language spoken by the Chaga people in northern Tanzania.
20. West Indian tree having racemes of fragrant white flowers and yielding a durable timber and resinous juice.
22. A soft silvery metallic element of the alkali earth group.
25. The cry made by sheep.
27. A master's degree in library science.
28. A state in midwestern United States.
29. A radioactive element of the actinide series.
31. A city in western Germany near the Dutch and Belgian borders.
32. The face or front of a building.
37. The content of cognition.
38. A mark left by the healing of injured tissue.
39. Any of numerous local fertility and nature deities worshipped by ancient Semitic peoples.
40. A unit of apothecary weight equal to an eighth of an ounce or to 60 grains.
41. Having nine hinged bands of bony plates.
43. Measure of the US economy adopted in 1991.
45. A constellation in the southern hemisphere near Telescopium and Norma.
46. A heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically).
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