/ Dictionary / Index T Tsiolkovsky: Meaning and Definition of Find definitions for: Tsiol•kov•sky Pronunciation: (tsyôl-kôf'skē, -kof'- Russ. tsul-kôf'skyē), [key] 1857–1935, Russian inventor and rocket expert. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Tsinling Shan Tsiranana Related Content Daily Word Quiz: knead Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language