Abhidhamma - Abhidhamma

...It is so named because it consists of three parts: sutras, vinaya, and treatises. The suttas are records of the words and deeds of Shakyamuni and his disciples, the vinaya are rules and regulations of the Buddhist order, and the abhidhamma is a development of philosophical theories. After Shakyamuni's death, his disciples held a "Ketsuju" (a meeting to compile the scriptures) to correctly convey his teachings and began to organize the scriptures, but about 100 to 200 years after the Buddha's death, the Buddhist order split into many sects, and each sect began to transmit its own Tripitaka. ...

*Some of the terminology explanations that mention "Abhidhamma" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…経･律･論の三部よりなるところからこう呼ばれる。経(スッタsutta)は釈迦や弟子たちの言行録，律(ビナヤvinaya)は教団の戒律規定，論(アビダンマabhidhamma)は哲学的理論を展開したものである。釈迦の滅後，その教えを正しく伝えるために，弟子たちは〈結集（けつじゆう）〉(経典編集の集会)を開き，経典整理を開始したが，仏滅後100～200年ころには教団は多くの部派に分裂し，それぞれの部派が各自の三蔵を伝持するようになった。…

※「アビダンマ」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報