[in-ter-ven-shuh n]

Origin of intervention

1375–1425; late Middle English < Late Latin interventiōn- (stem of interventiō) a coming between. See intervene, -tion
Related formsin·ter·ven·tion·al, in·ter·ven·tion·ar·y, adjectivepro·in·ter·ven·tion, adjectivere·in·ter·ven·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for interventionary


  1. the act of intervening
  2. any interference in the affairs of others, esp by one state in the affairs of another
  3. economics the action of a central bank in supporting the international value of a currency by buying large quantities of the currency to keep the price up
  4. commerce the action of the EU in buying up surplus produce when the market price drops to a certain value
Derived Formsinterventional, adjective
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 interventionary



early 15c., "intercession, intercessory prayer," from Middle French intervention or directly from Late Latin interventionem (nominative interventio) "an interposing," noun of action from past participle stem of Latin intervenire "to come between, interrupt," from inter- "between" (see inter-) + venire "come" (see venue).

Online Etymology Dictionary, © 2010 Douglas Harper

interventionary in Medicine


  1. Interference so as to modify a process or situation.
Related formsin′ter•vene (ĭn′tər-vēn) v.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.