a curve formed by the intersection of a caustic surface with a plane
another name for caustic (sense 5)
caustic curve in American English
noun
Optics
a curve formed by a plane section of a caustic surface
Also called: caustic
Word origin
[1720–30]This word is first recorded in the period 1720–30. Other words that entered Englishat around the same time include: berm, personify, saloon, stylus, syllabic