- capable of burning, corroding, or destroying living tissue.
- severely critical or sarcastic: a caustic remark.
Origin of caustic
SynonymsSee more synonyms for caustic on Thesaurus.com
Examples from the Web for caustically
If he was getting hot around the collar, Ziffer said caustically, it was "partly because I'm one of those hot-headed Levantines."For My Money, I'll Take the Al-Kuwaitis
May 6, 2013
“Only blue-eyed blondes get any press,” he caustically wrote.A Serial Killer's Free Rein
November 6, 2009
"'The way is clear enough wi'oot that," from Tammas caustically.Bob, Son of Battle
"I told you you hadn't swallowed 'em," remarked Matilda, caustically.Master of the Vineyard
"The latter at all costs, I presume," said Barbara, caustically.The Shadow of the Czar
John R. Carling
"We are not playing at tin politics nowadays," he caustically remarked.The Secret of the League
"That is very easy to say, uncle," replied Gonzalo caustically.The Fourth Estate, vol. 2
Armando Palacio Valds
- 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
- 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
Word Origin and History for caustically
c.1400, "burning, corrosive," from Latin causticus "burning, caustic," from Greek kaustikos "capable of burning; corrosive," from kaustos "combustible; burnt," verbal adjective from kaiein, the Greek word for "to burn" (transitive and intransitive) in all periods, of uncertain origin with no certain cognates outside Greek. Figurative sense of "sarcastic" is attested from 1771. As a noun, early 15c., from the adjective.
- A hydroxide of a light metal.
- A caustic material or substance.
- 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.