[ lʌɪ'si:əm ]
■ noun
1》 the garden at Athens in which Aristotle taught philosophy.
↘( the ~ ) Aristotelian philosophy and its followers.
2》 ( lyceum ) US archaic a literary institution, lecture hall, or teaching place.
Origin
via L. from Gk Lukeion , neut. of Lukeios , epithet of Apollo (from whose neighbouring temple the ~ was named).