(1855–1916), American astronomer. Lowell inferred the existence of a ninth planet beyond Neptune, and when it was eventually discovered in 1930 it was given the name Pluto, with a symbol that also included his initials. He was the brother of Amy Lowell.
Definition of Lowell, Percival in US English:
Lowell, Percival
proper nounˈlōəlˈloʊəl
(1855–1916), US astronomer. He inferred the existence of a ninth planet beyond Neptune. When it was eventually discovered in 1930, it was given the name Pluto, with a symbol that also included his initials. He was the brother of poet Amy Lowell.