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Caustic

//ˈkɔːstɪk// adj, noun, slang

Adjective

1
Capable of burning, corroding or destroying organic tissue.
2
Sharp, bitter, cutting, biting, and sarcastic in a scathing way. usually
""How now!" said Scrooge, caustic and cold as ever."

Adjective

1
of a substance, especially a strong acid; capable of destroying or eating away by chemical action wordnet
2
harsh or corrosive in tone wordnet

Noun

1
Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic. countable, uncountable
"The association of the heavenly bodies with known metals and also with human organs and destinies goes back to ancient Chaldea, the land of astrologers. In Chaucer’s words: ‘The seven bodies eek, lo hear anon. Sol gold is, and Luna silver we declare; Mars yron, Mercurie is quyksilver; Saturnian leed; and Jubitur is tyn, and Venus coper, by my fathers kyn.’ […] Corresponding names were bestowed upon salts of these metals by the alchemists, and some of them have persisted down to the present day. Some examples are lunar caustic (silver nitrate); vitriol of Venus (copper sulphate); sugar of Saturn (lead acetate); and vitriol of Mars, or Martial vitriol (ferrous sulphate)."
2
the envelope of light rays reflected or refracted by a curved surface or object wordnet
3
The envelope of reflected or refracted rays of light for a given surface or object. countable, uncountable
4
any chemical substance that burns or destroys living tissue wordnet
5
The envelope of reflected or refracted rays for a given curve. countable, uncountable

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Etymology 1

From the Latin causticus (“burning”), from Ancient Greek καυστικός (kaustikós, “burning”), from καυστός (kaustós, “burnt”) + -ικός (-ikós).

Etymology 2

From the Latin causticus (“burning”), from Ancient Greek καυστικός (kaustikós, “burning”), from καυστός (kaustós, “burnt”) + -ικός (-ikós).

Unscramble this word: caustic