What does FLAC stand for?

Fast Lagrangian Analysis of Continua - A powerful two-dimensional continuum code for modeling geomechanicals (WIPP)

Federation of Latin American Clubs, Europe (SAUO)

Flaccid

Florida Automatic Computer - Air Force

Flutter Analysis by a Collocation Method (ACAE)

In Flaccum - of Philo Judaeus (BJA)

Pro Flacco - of Cicero - Classical studies (OCD)