___
___
研 [research]
石
is in
___
开
is in
___
On-reading:
ケン
as in
研究
kenkyū
___
KEN to(gu)
研究
kenkyū
research
究 [investigate]
研究室
kenkyūshitsu
lab | office
→
研究 する kenkyū suru
to research | to study