I was so absorbed in my research that when I noticed it was already past 12 o'clock.
I'm a Tofugu researcher taking part in the study of biopharmaceutical production.
We are currently accepting applicants to participate in our research study of Titans.
When you sharpen research you're just doing a study or investigation. Or in other words, you're doing research!
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.