also: じゅうはっかい
noun
eighteen components of perception
Buddhist technical term: the six sense objects (六境), six sense faculties (六根), and six sense consciousnesses (六識).
仏教の唯識論では、十八界が認識の枠組みとして分析される。
In Buddhist consciousness-only theory, the eighteen components of perception are analyzed as the framework of cognition.
From 十八 (eighteen) + 界 (realm, category). A Buddhist doctrinal term; the exact historical derivation is uncertain.