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caustic
[ kaw-stik ]
/ ˈkɔ stɪk /
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This shows grade level based on the word's complexity.
adjective
capable of burning, corroding, or destroying living tissue.
severely critical or sarcastic: a caustic remark.
noun
a caustic substance.
Optics.
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Origin of caustic
1350–1400; Middle English <Latin causticus<Greek kaustikós burning, caustic, equivalent to kaust(ós) burnt (verbal adjective of kaíein to burn) + -ikos-ic
OTHER WORDS FROM caustic
Words nearby caustic
causerie, causeuse, causeway, causey, causist, caustic, caustic alcohol, caustic curve, caustic lime, caustic potash, caustic soda
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use caustic in a sentence
British Dictionary definitions for caustic
caustic
/ (ˈkɔːstɪk) /
adjective
capable of burning or corroding by chemical actioncaustic soda
sarcastic; cuttinga caustic reply
of, relating to, or denoting light that is reflected or refracted by a curved surface
noun
Also called: caustic surface a surface that envelops the light rays reflected or refracted by a curved surface
Also called: caustic curve a curve formed by the intersection of a caustic surface with a plane
chem a caustic substance, esp an alkali
Derived forms of caustic
caustical, adjectivecaustically, adverbcausticity (kɔːˈstɪsɪtɪ) or causticness, nounWord Origin for caustic
C14: from Latin causticus, from Greek kaustikos, from kaiein to burn
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
Medical definitions for caustic
caustic
[ kô′stĭk ]
n.
A hydroxide of a light metal.
A caustic material or substance.
adj.
Capable of burning, corroding, dissolving, or eating away by chemical action.
Of or relating to light emitted from a point source and reflected or refracted from a curved surface.
Causing a burning or stinging sensation.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.