2. (Optics)
Defn: A caustic curve or caustic surface.
CAUSTICALLY
Caus"tic*al*ly, adv.
Defn: In a caustic manner.
CAUSTICILY
Caus*tic"i*ly, n.
1. The quality of being caustic; corrosiveness; as, the causticity of potash.
2. Severity of language; sarcasm; as, the causticity of a reply or remark.
CAUSTICNESS
Caus"tic*ness, n.
Defn: The quality of being caustic; causticity.
CAUTEL Cau"tel, n. Etym: [F. cautèle, L. cautela, fr. cavere to be on one's guard, to take care.]