Meaning of CHI in English

CHI

n. the twenty-second letter of the Greek alphabet (X).

Phrases and idioms:

chi-rho a monogram of chi and rho as the first two letters of Greek Khristos Christ. chi-square test a method of comparing observed and theoretical values in statistics.

Etymology: ME f. Gk khi

Oxford English vocab.      Оксфордский английский словарь.