Definition of phrontisterion in English:

phrontisterion

(also phrontisterium, frontisterion)

noun

literary
  • Phrontistery.

Origin

Early 17th century; earliest use found in Thomas Tomkis (b. c1580), playwright. From post-classical Latin phrontisterium and its etymon ancient Greek ϕροντιστήριον a ‘thinking-shop’, a term applied by Aristophanes in ridicule to the school of Socrates from ϕροντιστής + -τήριον, suffix forming nouns.

Pronunciation

phrontisterion

/ˌfrɒntɪˈstɪərɪɒn//ˌfrɒntɪˈstɪərɪən/