1. Com, cide, tri, aqua, hydro, audi, bio, port, logy, photo http://wordinfo.info/unit/2782/s:-cide stems list until Christmas.doc

2. com Together

3. examples common Combo community combine companion compete compound committee

4. community a group of people who live in the same area (such as a city, town, or neighborhood)

5. A group of people who live in the same area (such as a city, town, or neighborhood) The festival was a great way for the local community to get together. Many communities are facing budget problems. People in the community wanted better police protection.

6. combo a combination of different things

7. Combo I ordered the seafood combo. [=a dish that includes different kinds of seafood] The carpet design comes in three different color combos.

8. combine to cause (two or more things) to be together or to work together ▪ We decided to combine both methods/techniques. ▪ The groups have combined forces to lobby for reform. The drug may be combined with other treatments. to mix (two or more things) together to form a single thing ▪ Combine the ingredients (together) in a large bowl. ▪ combining oxygen and/with hydrogen to come together and form a single thing or group ▪ Atoms combine to form molecules. ▪ The two companies combined under his leadership.

9. combine

10. Companion a person or animal you spend time with or enjoy being with She has been my closest companion since childhood.

11. compete to try to get or win something (such as a prize or reward) that someone else is also trying to win : to try to be better or more successful than someone or something else

12. compete

13. Thousands of applicants are competing for the same job. ▪ She competed against students from around the country. ▪ We are competing with companies that are twice our size. ▪ Did you compete in the track meet on Saturday?

14. compound something that is formed by combining two or more parts ; a substance created when the atoms of two or more chemical elements join together

15. compound The metal reacts with the gas to form a compound.

16. committee a group of people who are chosen to do a particular job or to make decisions about something

17. committee Kevin is on the decorating committee for the International Festival.

18. Logy "study of" or "science of" biology (bio-logy) science of life and living organisms

19. biology the study of living organisms, including their structure, functioning, evolution, distribution, and Interrelationships

20. pathology the science or the study of the origin, nature, and course of diseases. Patho: “suffering,” “disease,” “feeling,”

21. geology 1. the scientific study of the origin, history, structure, and composition of the earth 2. the geological features of a district or country

22. areology The study of the planet Mars. Astrology The study of the influences of the stars on human destinies. A prefix that means "star" (as in astrophysics ), "celestial body" (asin astronomy ), or "outer space" (as in astronaut ).

23. cosmology The branch of astrophysics that studies the origin, evolution, and structure of the universe

24. demonology The study of demons; especially, those that are frequent in the folklore of some societies.

25. dilectology The study of dialects;

26. dinosaurology The study of dinosaurs

27. domatology The science or study of houses.

28. eremology The study of deserts.

29. erotology The study of love and its manifestations

30. hydrology The scientific study of the properties, distribution, and effects of water on the earth's surface, in the soil and underlying rocks, and in the atmosphere.

31. philematology The art or science of kissing.

32. photology A branch of physics that deals with light or the study of light and its effects.

33. cosmetology The study of cosmetics, or the art, or profession, of using cosmetics.

34. cynology The study of dogs..

35. cide kill, killer; murder, to cause death, slayer; cutter; “to cut down”)

36. aborticide The destruction of a fetus either by a spontaneous or induced procedure; the act of destroying a fetus in the womb: "The parents were distressed because of the natural and unexpected aborticide that happened.“

37. arachnidcide The killing of spiders, scorpions, etc.

38. avicide The slaughter of birds.

39. canicide The killing of dogs; a dog-killer

40. ethnocide The deliberate and systematic destruction of the culture of an ethnic group; especially, within a larger community.

41. felicide Killing a cat or cats; cat-slaughter.

42. genocide, genocidal The deliberate and systematic extermination of an ethnic or national group.

43. filicide, filicidal 1. One who kills a son or daughter; a slayer of his/her own child. 2. The action of killing a son or daughter. formicide, formicicide The killing of ants.

44. germicide 1. That which kills germs; specifically, an agent used to destroy disease-germs. 2. Destructive to germs. giganticide, giganticidal A giant-killer or the killing of giants. herbicide, herbicidal Any chemical agent that is toxic to some or all plants and is used to destroy unwanted vegetation.

45. homicide 1. The killing of any human being, whether lawfully or unlawfully; 2. One who kills a human being; a man-slayer; in earlier use often a murderer. 3. Anyone who kills another person.

46. suicide The act of intentionally causing ones own death

47. hospiticide One who kills his guest or host. hymnicide The “murdering” of a hymn; i.e. by alterations. insecticide, insecticides 1. One who or that which kills insects, an insect-killer; specifically, a preparation used for destroying insects. 2. The killing of insects.

48. mariticide, mariticidal, maritocide The killing of a spouse, especially a husband matricide, matricidal 1. The act of murdering one's own mother. 2. Someone who has murdered his or her own mother. myrmecide The killing of ants.

49. amicicide The act of murdering one’s friend. apicide The killing of bees.

50. hydro/aqua Water

51. carbohydrate An organic compound present in the cells of all living organisms and a major organic nutrient for human beings; it consists of carbon, hydrogen, and oxygen, and makes up sugar, starch, and cellulose.

52. dehydrated 1. Lacking water. 2. Suffering from dehydration of the body.

53. hemihydrophyte Plants that grow part of the time in water and other times in non-aquatic soil.

54. hydrant 1. An upright pipe with a spout, nozzle, or other outlet, usually in the street, for drawing water from a main or service pipe; especially, for fighting fires. 2. A faucet for drawing water from a pipe.

55. hydrobiology 1. The study of life, or living organisms, in aquatic habitats. 2. The study of live forms in bodies of water; such as, lakes or estuaries.

56. hydrobiont An organism living mainly in water.

57. hydrodipsia A craving for water.

58. hydrogeophyte A plant that grows in earth and in water.

59. hydrology 1. The scientific study of the properties, distribution, and effects of water on the earth's surface, in the soil and underlying rocks, and in the atmosphere.

60. hydromania 1. An excessive craving for water or liquids; an uncontrollable fascination with water. 2. An impulse to commit suicide by drowning.

61. hydronaut A person trained to work in deep-sea vessels for research and rescue purposes.

62. hydropathology The system of using water to treat and cure diseases. Hydro--water Patho--feeling, sensation, perception; suffering, disease, or disorder; a system of treatment of disease) Logy—the study of, the science of

63. hydrophytography A written description of aquatic plants.

64. hydroscope, hydroscopic An optical device used for viewing objects far below the surface of water.

65. hydrophyte 1. A plant that grows in water or in saturated soil. 2. A plant requiring large amounts of water for growth; also, hygrophyte. 3. A plant that grows partly or completely underwater.

66. hydrothermal 1. A reference to heated water, to its action, or to the products of such action. 2. Applied to the action of heated water in bringing about changes in the earth's crust. 3. A reference to hot water on or beneath the surface of the earth. 4. Relating to hot water, especially to naturally occurring hot water in thermal springs. 5. Relating to or caused by heated water; especially, the action of water heated by natural processes rather than by industrial activity.

67. hydrothermostat A thermostat for regulating the temperature of water. Hydrothermotherapy Hydrotherapy in which heated water is utilized as a treatment for physical ailments.

68. aquabib 1. An individual who only drinks water. 2. A water drinker. "I was never much of an aquabib because I usually preferred harder libations." "Some say I'm an aquabib because they think I'm addicted to water.

69. aquafarm A special kind of farm for growing plants (without soil) in water containing dissolved nutrients: "His aquafarm is well known by people in his community."

70. aquacade 1. An entertainment spectacle of swimmers and divers, often performing in unison to the accompaniment of music.

71. aquaphobic Someone who is abnormally afraid of water.

72. aquaplane 1. A board pulled over the water by a motorboat and ridden by a person standing up. 2. Water-skiing boards on which people stand while they are being towed by a motorboat.

73. aquarium A tank, bowl, or other water-filled enclosure in which living fish or other aquatic animals and plants are kept.

74. aquanaut a person who lives for a long while in an underwater shelter used as a base for research

75. aquarist one who keeps an aquarium