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John Herschel Glenn Jr.

Definitions of John Herschel Glenn Jr.
  1. noun
    made the first orbital rocket-powered flight by a United States astronaut in 1962; later in United States Senate (1921-)
    synonyms: Glenn, John Glenn
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    example of:
    astronaut, cosmonaut, spaceman
    a person trained to travel in a spacecraft
    senator
    a member of a senate
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