/ (Russian tsʌlˈkofskjɪ) /
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Konstantin Eduardovich (kənstʌnˈtjin eduˈadəvɪtʃ). 1857–1935, Russian aeronautical engineer, a pioneer of rocket and space research. His work on liquid-fuelled rockets anticipated the ideas of Robert Goddard
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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