3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Caustic \Caus"tic\, Caustical \Caus"tic*al\, adjective [L. caustucs, Ge. ?, fr. ? to burn. Cf. {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.

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Caustic \Cau"stic\, noun [L. causticum (sc. medicamentum). See {Caustic}, adjective]

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) A caustic curve or caustic surface.

From WordNet (r) 3.0 (2006) [wn]:



1: harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique" [syn: {acerb}, {acerbic}, {acid}, {acrid}, {bitter}, {blistering}, {caustic}, {sulfurous}, {sulphurous}, {virulent}, {vitriolic}]

2: of a substance, especially a strong acid; capable of destroying or eating away by chemical action [syn: {caustic}, {corrosive}, {erosive}, {vitriolic}, {mordant}]


1: any chemical substance that burns or destroys living tissue

1. Caduceus  2. Golden Key  3. Scales of Justice (Or maybe, 1. HEALTH 2. SECURITY 3. JUSTICE?)


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