noun
phase-contrast microscope
A type of optical microscope that converts phase shifts in light passing through a transparent specimen to brightness changes, used especially in biology for observing living cells without staining.
位相差顕微鏡を使うと、生きた細胞を染色せずに観察できる。
Using a phase-contrast microscope, you can observe living cells without staining them.
Compound of 位相差 (phase difference) + 顕微鏡 (microscope), a calque from English 'phase-contrast microscope'.