astronuclear en · ADJ
Etymology
From astro- + nuclear.
Meanings
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(not-comparable) Of or pertaining to the applications of nuclear physics to space, as for example in nuclear space propulsion.
In the late 1950s, he organized the company’s astronuclear laboratory, which won the federal government’s first contract to develop a nuclear reactor for rocket propulsion.
2007 January 17, Dennis Hevesi, “John W. Simpson, 92, Dies; Pioneer of Nuclear Power”, in New York Times: