an·tip·o·dal 
(ăn-tĭpə-dəl)
(ăn-tĭpə-dəl)adj.
1. Of, relating to, or situated on the opposite side or sides of the earth: Australia and Great Britain occupy antipodal regions.
2. Diametrically opposed; exactly opposite.
n.
One of usually three cells situated at the opposite end from the egg in the mature embryo sac of a flowering plant.