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rockoon

American

[rok-oon, ro-koon] / ˈrɒk un, rɒˈkun /

noun

a rocket launched from a balloon at a high altitude.

rockoon British

/ rɒˈkuːn /

noun

a rocket carrying scientific equipment for studying the upper atmosphere, fired from a balloon at high altitude

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of rockoon

1950–55; rock(et ¹ ) + (ball)oon

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I also understand that a rockoon is a combination of a rocket and a balloon.

From The Flying Stingaree by Goodwin, Harold L. (Harold Leland)

But if altitude isn't important, why use a rockoon?

From The Flying Stingaree by Goodwin, Harold L. (Harold Leland)

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023