A person who travels to unknown or remote places to discover or investigate, often for scientific or adventurous purposes.
彼は有名な探検家で、アマゾンの奥地を調査した。
He is a famous explorer who investigated the depths of the Amazon.
When I was a child, my dream was to become an explorer and explore unknown islands.
Standard kanji spelling.
Variant using 険 (danger) instead of 検 (search); less common but still seen.
Compound of 探検 (exploration) and 家 (person who does something professionally).