caustics
plural of caustic
Source: Wiktionary
Caus"tic, Caus"tic*al, a. Etym: [L. caustucs, Ge. Calm, Ink.]
1. Capable of destroying the texture of anything or eating away its substance by chemical action; burning; corrosive; searing.
2. Severe; satirical; sharp; as, a caustic remark. Caustic curve (Optics), a curve to which the ray of light, reflected or refracted by another curve, are tangents, the reflecting or refracting curve and the luminous point being in one plane.
– Caustic lime. See under Lime.
– Caustic potash, Caustic soda (Chem.), the solid hydroxides potash, KOH, and soda, NaOH, or solutions of the same.
– Caustic silver, nitrate of silver, lunar caustic.
– Caustic surface (Optics), a surface to which rays reflected or refracted by another surface are tangents. Caustic curves and surfaces are called catacaustic when formed by reflection, and diacaustic when formed by refraction.
Syn.
– Stinging; cutting; pungent; searching.
Cau"stic, n. Etym: [L. causticum (sc. medicamentum). See Caustic, a.]
1. Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.
2. (Optics)
Definition: A caustic curve or caustic surface.
Source: Webster’s Unabridged Dictionary 1913 Edition
21 December 2024
(noun) a forest fire fighter who is sent to battle remote and severe forest fires (often for days at a time)
The word “coffee” entered the English language in 1582 via the Dutch “koffie,” borrowed from the Ottoman Turkish “kahve,” borrowed in turn from the Arabic “qahwah.” The Arabic word qahwah was traditionally held to refer to a type of wine.
