Definition of Grissom, Gus in English:

Grissom, Gus

Syllabification: Gris·som, Gus
Pronunciation: /ˈgrisəm
  • (1926–67), US astronaut; full name Virgil Ivan Grissom. Part of the original Project Mercury astronaut team in 1959, he was killed in a flash fire in the Apollo I capsule along with fellow astronauts Edward H. White (1930–67) and Roger B. Chaffee (1935–67).

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Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
(in science fiction) navigation in outer space