第だい一いち哲てつ学がくだいいちてつがくMeanings1nounfirst philosophyA philosophical term, often associated with Aristotle's metaphysics or the study of being as being. Used in academic contexts.アリストテレスの第だい一いち哲てつ学がくは、存そん在ざいそのものを問とう学がく問もんで