noun
laboratory; testing station; research facility
Refers to a physical facility where experiments, testing, or research are conducted. Often used in institutional names.
この実験所では新薬の開発が行われている。
New drug development is being carried out at this research facility.
農業試験場の隣に実験所が建てられた。
A testing station was built next to the agricultural experiment station.
試験所 focuses on testing and examination, often for quality control or certification, whereas 実験所 is broader and includes experimental research.
Compound of 実験 (experiment) and 所 (place, facility).