The term "Gerard Peter Kuiper" refers to a specific person, not a common English word. Here’s an easy explanation:
Gerard Peter Kuiper (1905-1973) was a famous astronomer from the Netherlands who moved to the United States. He is best known for his studies of the solar system, which is the collection of the Sun and all the celestial bodies that orbit it, including planets, moons, asteroids, and comets. In 1951, he suggested that there is a region at the edge of our solar system filled with icy objects and debris, which is now called the Kuiper Belt.
Gerard Peter Kuiper is an important figure in astronomy known for his work on the solar system and the concept of the Kuiper Belt.