1 definition by The Cobbgoblin

PSI

The letter in the Greek Alphabet that comes after chi and before omega.

alpha, beta, gamma, delta, epsilon, zeta, eta, theta, iota, kappa, lambda, mu, nu, xi, omicron, pi, row, sigma, tau, upsilon, phi, chi, psi, omega

by The Cobbgoblin May 17, 2006