1. United States astronomer who discovered the planet Pluto (1906-1997)
   - Clyde Tombaugh, Clyde William Tombaugh

Type of: astronomer, stargazer, uranologist

• Lasthenia chrysostoma
• lasting
• lastingly
• lastingness
• lastly
• Lastreopsis
• Laszlo Lowestein
• lat
• latakia
• latanier
• latanier palm
• latch
• latch on
• latchet
• latchkey
• latchkey child
• latchstring
• late
• late blight
• Late Greek
• Late Latin
• late purple aster
• late-blooming
• late-flowering
• late-night hour