1. Syndrome resulting from a serious acute (sometimes fatal) infection associated with the presence of staphylococcus.
4. (cosmology) The original matter that (according to the big bang theory) existed before the formation of the chemical elements.
8. (Irish) Mother of the ancient Irish gods.
11. United States musician (born in Japan) who married John Lennon and collaborated with him on recordings (born in 1933).
12. A port city on the Caspian Sea that is the capital of Azerbaijan and an important center for oil production.
13. The longer of the two telegraphic signals used in Morse code.
14. United States virologist who developed the Salk vaccine that is injected against poliomyelitis (born 1914).
16. System of measurement based on centimeters and grams and seconds.
17. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
18. Characterized by speed.
20. 16 ounces.
22. The blood group whose red cells carry both the A and B antigens.
23. A master's degree in business.
24. An independent agency of the United States government responsible for collecting and coordinating intelligence and counterintelligence activities abroad in the national interest.
25. Tropical Asian starlings.
26. Soft suede glove leather from goatskin.
30. (pathology) An elevation of the skin filled with serous fluid.
32. South African term for `boss'.
33. A federal agency established to regulate the release of new foods and health-related products.
36. A loose sleeveless outer garment made from aba cloth.
37. Capital and largest city and economic and cultural center of Portugal.
40. Any of numerous local fertility and nature deities worshipped by ancient Semitic peoples.
44. Using speech rather than writing.
45. A workplace for the conduct of scientific research.
48. An agency of the United Nations affiliated with the World Bank.
49. The capital and largest city of Yemen.
50. 4-wheeled motor vehicle.
51. A barrier constructed to contain the flow or water or to keep out the sea.
52. Someone who works (or provides workers) during a strike.
53. A constellation in the southern hemisphere near Telescopium and Norma.
54. A period marked by distinctive character or reckoned from a fixed point or event.

1. The act of flipping a coin.
2. The act of catching an object with the hands.
3. Dignified and somber in manner or character and committed to keeping promises.
4. A soft silvery metallic element.
5. Made of or resembling lace.
6. A graphical recording of the cardiac cycle produced by an electrocardiograph.
7. Of or relating to or supporting Islamism.
8. A sweetened beverage of diluted fruit juice.
9. Plant with an elongated head of broad stalked leaves resembling celery.
10. According to the Old Testament he was a pagan king of Israel and husband of Jezebel (9th century BC).
15. Cubes of meat marinated and cooked on a skewer usually with vegetables.
19. Tropical woody herb with showy yellow flowers and flat pods.
21. African tree having an exceedingly thick trunk and fruit that resembles a gourd and has an edible pulp called monkey bread.
27. A white metallic element that burns with a brilliant light.
28. (astronomy) The angular distance of a celestial point measured westward along the celestial equator from the zenith crossing.
29. A very poisonous metallic element that has three allotropic forms.
31. A soft silvery metallic element of the alkali earth group.
34. English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984).
35. (Hindu) A manner of sitting (as in the practice of Yoga).
38. Divulge information or secrets.
39. Type genus of the Alcidae comprising solely the razorbill.
40. One thousand grams.
41. An officer who acts as military assistant to a more senior officer.
42. The sixth month of the civil year.
43. A Tibetan or Mongolian priest of Lamaism.
46. A river in north central Switzerland that runs northeast into the Rhine.
47. An undergarment worn by women to support their breasts.