Definitions for "Vexillology"
is the study of flag history and symbolism. The name comes from the Latin word vexillum, which means flag. The word was coined by Dr. Whitney Smith of the Flag Research Center.
The study of flags and their history
(vex-il-lol-o-gy) The study of the history, symbolism, and usage of flags or, by extension, any interest in flags in general. Thus, vexillological.