1. the widespread, destructive outbreak of a plant disease.

Origin of epiphytotic

First recorded in 1895–1900; epi- + -phyte + -otic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for epiphytotic


  1. (of plant diseases and parasites) affecting plants over a wide geographical region

Word Origin for epiphytotic

from epi- + -phyte + -otic
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

epiphytotic in Science


  1. Relating to or characterized by a sudden or abnormally destructive outbreak of a plant disease, usually over an extended geographic area.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.