avellan
adjective
avel·lan ə-ˈve-lən 
variants or avellane
ə-ˈve-ˌlān
ˈa-və-ˌlān
of a heraldic cross
: having the four arms shaped like conventionalized filberts see cross illustration
Word History
Etymology
Latin abellana, avellana filbert, from feminine of Abellanus of Abella, from Abella, ancient town in Italy
First Known Use
1610, in the meaning defined above