Search Result for "tombaugh": 
Wordnet 3.0

NOUN (1)

1. United States astronomer who discovered the planet Pluto (1906-1997);
[syn: Tombaugh, Clyde Tombaugh, Clyde William Tombaugh]



WordNet (r) 3.0 (2006):

Tombaugh
    n 1: United States astronomer who discovered the planet Pluto
         (1906-1997) [syn: Tombaugh, Clyde Tombaugh, Clyde
         William Tombaugh]