The Collaborative International Dictionary
Amphidromical
Amphidromical \Am`phi*drom"ic*al\, a. [Gr. 'amfi`dromos running about or around.] Pertaining to an Attic festival at the naming of a child; -- so called because the friends of the parents carried the child around the hearth and then named it.
Wiktionary
amphidromical
a. Pertaining to the http://en.wikipedia.org/wiki/Amphidromia.