The term "Teppo Denrai" (introduction of firearms) generally refers to the introduction of matchlock guns from Europe into East Asia in the 15th century, and in a more limited sense it means the introduction of matchlock guns into Tanegashima Island, Japan.
鉄砲伝来（てっぽうでんらい）とは、15世紀にヨーロッパから東アジアへ火縄銃型の銃が伝わったこと、狭義には日本の種子島に伝来した事件を指す。