Standard medical term for lentigo or mole. Not to be confused with 黒子 (ほくろ) or 黒子 (くろこ).
こくしUsage44%
Etymology
Sino-Japanese compound of 黒 (black) and 子 (small thing/child), referring to a small dark spot on the skin. The reading こくし is the on'yomi of the characters.
