いわゆる

pre-noun adjectival

so-called; what is called

Pre-noun adjectival used to introduce a term or concept that is commonly known by a certain name, often with a nuance of 'the so-called' or 'what people refer to as'.

• これがいわゆる「もったいない」の精せい神しんだ。

  This is the so-called spirit of 'mottainai'.