Dictionary.com
definitions

astronautics

[as-truh-naw-tiks, -not-iks]
|

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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for astronautics

Historical Examples of astronautics

  • As far back as I can remember in my childhood, I was always interested in astronautics.

    Man Made

    Albert R. Teichner

  • 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

British Dictionary definitions for astronautics

astronautics

noun

(functioning as singular) the science and technology of space flight
Derived Formsastronautic 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
Word Origin and History for astronautics
n.

1929, see astronaut + -ics.

Online Etymology Dictionary, © 2010 Douglas Harper