Investigation
noun, verbal noun
If you do research to brighten a subject area, you're probably doing some kind of investigation that illuminates the unknown.
This word is usually found in academic and scientific contexts, and suggests a thorough investigation meant to ascertain or clarify something.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
究明をする
to conduct an investigation
究明をめざす
to strive to bring a matter to light
究明を行う
to carry out an investigation
自分の欠点を究明しました。
I investigated my shortcomings.
本当のことを究明したいんです。
I want to bring the truth to light.
アルミ電池の弱点を究明した。
I investigated the weaknesses of aluminum batteries.