Definition of "chi" []

• The 22nd letter of the Greek alphabet. See Table at alphabet. (noun)
• The vital force believed in Taoism and other Chinese thought to be inherent in all things. The unimpeded circulation of chi and a balance of its negative and positive forms in the body are held to be essential to good health in traditional Chinese medicine. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The traditional Chinese meaning of the phrase "tai chi" is precisely the whole that encompasses both yang and yin."
• "Since tai chi is a practice that requires movement, it is the transition that defines the practice: a motionless statue lacks the dynamic essence of tai chi."
• "Tai chi is great for balance and is supposed to also keep energies flowing in a healthy way."