(ˌtɛ trəˈdræk mə)

also tet•ra•drachm

(ˈtɛ trəˌdræm)

n., pl. -drach•mas also -drachms.
a silver coin of ancient Greece, equal to four drachmas.
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References in periodicals archive ?
Athenian tetradrachma coin--the owl of Athena, representing wisdom and intellect (1.1 [April 1958]: 16).
A large number of coins were found in denomination of tetradrachmas, drachmas and obols, which had been introduced by Alexander the Great and continued to be copied by his successors the Seleucids as well as by the Arab Rulers.
Magness wishes to reduce the gap in occupation to a few years following the deposit of the hoard of Tyrian tetradrachmas, the last of which dates to 9/8 BC (62-63).