Indian Buddhism

...However, foreign philosophies and religious ideas, such as Islam, which were introduced into India and developed in an Indian style, should also be included. In Japan, a Buddhist country, it has been written as "Indian philosophy" since the Meiji period and is sometimes used as a synonym for "Buddhist studies," but "Indian philosophy" here includes Indian Buddhism as one of many systems. In this case, "India" refers not only to today's India (Bharat) but also to the region known as the "Indian subcontinent," which includes neighboring countries.

*Some of the terminology explanations that refer to "Indian Buddhism" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…しかしインドへ移入されてインド的展開を遂げたイスラムなど外来の哲学･宗教思想もまた含められるべきであろう。仏教国である日本では，明治時代以降〈印度哲学〉と表記され，〈仏教(学)〉の同義語として用いられる場合もあるが，ここでいう〈インド哲学〉は，インド仏教を，数多くの諸体系の一つとして包括している。この場合の〈インド〉は今日のインド(バーラト)のみならず，その近隣諸国をも含む〈インド亜大陸〉といわれる地域を指す。…

※「インド仏教」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