Euclidean alphabet

Etymology
Named after Euclid, the archon of Athens responsible for its adoption.

Noun

 * 1) The classical Greek alphabet, a modified form of the Ionic alphabet adopted by Athens in 403 BC following its defeat in the Peloponnesian War.

Usage notes
Used when distinguishing this form of the Greek alphabet from its other epichoric forms, particularly Athens's earlier Attic alphabet.

Synonyms

 * Greek alphabet, Ionic alphabet