[ as-truh-naw-tiks, -not-iks ]
/ ˌæs trəˈnɔ tɪks, -ˈnɒt ɪks /

noun (used with a singular verb)

the science of or technology involved in travel beyond the earth's atmosphere, including interplanetary and interstellar flight.

Origin of astronautics

First recorded in 1925–30; see origin at astronautical, -ics Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for astronautics

  • Apparently the demand for specific formal education in the science of astronautics is increasing faster than it is being supplied.

    The Practical Values of Space Exploration|Committee on Science and Astronautics
  • As far back as I can remember in my childhood, I was always interested in astronautics.

    Man Made|Albert R. Teichner

British Dictionary definitions for astronautics

/ (ˌæstrəˈnɔːtɪks) /


(functioning as singular) the science and technology of space flight

Derived forms of astronautics

astronautic or astronautical, adjectiveastronautically, adverb
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