gammadion
noun
gam·ma·di·on
gəˈmādēˌän,
gaˈ-,
-madē-,
-ēən
variants or less commonly gammation
-matē-
plural gammadia also gammatia
-ēə
: a cross formed of four capital gammas especially in the figure of a swastika or in that of a voided Greek cross
called also crux gammata, gammate cross
Word History
Etymology
modification of Medieval Latin gammadium, irregular from Late Latin gamma
First Known Use
1819, in the meaning defined above