from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An honorary society, founded in 1776, of college students and graduates whose members are chosen on the basis of high academic standing.
- n. A member of this society.
From the initials of the society's motto in Greek philosophiā biou kubernētēs, philosophy the guide of life : philosophiā, philosophy + biou : genitive of bios, life + kubernētēs, guide.(American Heritage® Dictionary of the English Language, Fourth Edition)