Dictionary.com

fissile

[ fis-uhl ]
/ ˈfɪs əl /
Save This Word!

adjective
capable of being split or divided; cleavable.
Physics.
  1. fissionable.
  2. (of a nuclide) capable of undergoing fission induced by low-energy neutrons, as uranium 233 and 235.
QUIZ
QUIZ YOURSELF ON AFFECT VS. EFFECT!
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of fissile

1655–65; <Latin fissilis, equivalent to fiss(us) (see fissi-) + -ilis-ile

OTHER WORDS FROM fissile

fis·sil·i·ty, nounnon·fis·sile, adjectivenon·fis·sil·i·ty, nounun·fis·sile, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use fissile in a sentence

British Dictionary definitions for fissile

fissile
/ (ˈfɪsaɪl) /

adjective
British capable of undergoing nuclear fission as a result of the impact of slow neutrons
US and Canadian another word for fissionable
tending to split or capable of being split

Derived forms of fissile

fissility (fɪˈsɪlɪtɪ), noun

Word Origin for fissile

C17: from Latin fissilis, from fissus split; see fissi-
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
FEEDBACK