WordReference Random House Unabridged Dictionary of American English © 2026
tropo-, 
  1. a combining form meaning "turn,'' "reaction, response,'' "change,'' "troposphere,'' used in the formation of compound words:tropophilous.
Also,[esp. before a vowel,] trop-. Cf. -trope, -tropism, -tropy, -tropic, -tropous. 
  • combining form representing Greek trópos turn, tropé̄ a turning

Collins Concise English Dictionary © HarperCollins Publishers::
tropo-
  1. indicating change or a turning: tropophyte
Etymology: from Greek tropos a turn
'tropo-' also found in these entries (note: many are not synonyms or translations):
trop - trope - troponin - tropopause - tropophilous - tropophyte - troposphere - tropotaxis

Forum discussions with the word(s) "tropo-" in the title:


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