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contamination:

The noun contamination has 3 senses (first 1 from tagged texts)

1. (2) contamination, taint -- (the state of being contaminated)
2. contaminant, contamination -- (a substance that contaminates)
3. contamination, pollution -- (the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors)

control:

The noun control has 11 senses (first 9 from tagged texts)

1. (19) control -- (power to direct or determine; "under control")
2. (16) control -- (a relation of constraint of one entity (thing or person or group) by another; "measures for the control of disease"; "they instituted controls over drinking on campus")
3. (7) control -- ((physiology) regulation or maintenance of a function or action or reflex etc; "the timing and control of his movements were unimpaired"; "he had lost control of his sphincters")
4. (5) control condition, control -- (a standard against which other conditions can be compared in a scientific experiment; "the control condition was inappropriate for the conclusions he wished to draw")
5. (5) control -- (the activity of managing or exerting control over something; "the control of the mob by the police was admirable")
6. (4) dominance, ascendance, ascendence, ascendancy, ascendency, control -- (the state that exists when one person or group has power over another; "her apparent dominance of her husband was really her attempt to make him pay attention to her")
7. (3) restraint, control -- (discipline in personal and social activities; "he was a model of polite restraint"; "she never lost control of herself")
8. (2) command, control, mastery -- (great skillfulness and knowledge of some subject or activity; "a good command of French")
9. (1) control, controller -- (a mechanism that controls the operation of a machine; "the speed controller on his turntable was not working properly"; "I turned the controls over to her")
10. control -- (a spiritual agency that is assumed to assist the medium during a seance)
11. control -- (the economic policy of controlling or limiting or curbing prices or wages etc.; "they wanted to repeal all the legislation that imposed economic controls")

The verb control has 8 senses (first 4 from tagged texts)

1. (28) control, command -- (exercise authoritative control or power over; "control the budget"; "Command the military forces")
2. (20) control, hold in, hold, contain, check, curb, moderate -- (lessen the intensity of; temper; hold in restraint; hold or keep within limits; "moderate your alcohol intake"; "hold your tongue"; "hold your temper"; "control your anger")
3. (7) operate, control -- (handle and cause to function; "do not operate machinery after imbibing alcohol"; "control the lever")
4. (1) manipulate, keep in line, control -- (control (others or oneself) or influence skillfully, usually to one's advantage; "She manipulates her boss"; "She is a very controlling mother and doesn't let her children grow up"; "The teacher knew how to keep the class in line"; "she keeps in line")
5. control, verify -- (check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard; "Are you controlling for the temperature?")
6. control -- (verify by using a duplicate register for comparison; "control an account")
7. see, check, insure, see to it, ensure, control, ascertain, assure -- (be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product")
8. master, control -- (have a firm understanding or knowledge of; be on top of; "Do you control these data?")

contamination control

Hygiena - Rapid Solutions for Food Safety
Hygiena is new brand incorporating 60 years of combined expertise in the design and manufacture of biochemical reagents. Based in Europe and the USA.
http://www.hygiena.net

CleanRooms - Contamination Control Technology
Clean manufacturing online reference for professionals designing, building, operating and maintaining cleanrooms. Check the Buyer's Guide for products and services. Or research a particular topic in the editorial archives.
http://www.cleanrooms.com

Contamination Control Products
Maker of modular cleanrooms, laminar flow work stations and other equipment for critical environments including garments, applicators and cleaning supplies.
http://ccpcleanroom.com/

Bartlett Bay Consulting
CLeanroom and Minienvironment Contamination Control for the Semiconductor and Pharmaceutical Industries. A full service company including training, certifying, design, trouble shooting, and analysis of cleanrooms/minienvironments
http://Bartlettbayconsulting.com