biradiate
ˌbaɪˈreɪdiˌeɪt
Definitions
1. verb
to divide or spread something out in two equal parts, especially from a central point
“The flower is biradiate, with two equal petals on either side of the stem.”
2. adjective
divided or spread out in two equal parts, especially from a central point
“The biradiate shape of the leaf made it easily identifiable.”