0 A caustic chemical burns or destroys things, especially anything made of living cells. -- 苛性的，腐蚀性的
a caustic substance 腐蚀性物质
1 A caustic remark or way of speaking is hurtful, critical, or intentionally unkind. -- （话语或说话方式）刻薄的，尖刻的，挖苦的
The existence of caustics for a billiard problem in a convex domain.
Existence of caustics for the billiard problem in a convex domain.
Also, at t = 1/2a, the hypocycloid reduces to a point (the origin) which is called the focus of the caustic.
In his method, the domain is cut along caustic curves.
The caustic of these rays will again send an exponentially subdominant ray back towards the inner boundary, which is again reflected.
Rather than give up caustic soda and synthetic dye, dyers ignored the bans and continued to use both items surreptitiously.
Caustic's lyrics are typically humorous, while the music itself ranges between older styled industrial and more modern styled powernoise.
High concentrations of chromium and lead are associated with this caustic chemical spill.
