/etʃ; ɛtʃ/
v
(a) [Tn, Tn.pr] ~ sth (on/onto sth) use a needle and acid to make (a picture, etc) on a metal plate from which copies may be printed 用针和酸类在金属板上蚀刻（图画等）
*(fig 比喻) The incident remained etched on her memory for years. 那次事件多年来一直铭刻在她的记忆中.
(b) [I] make pictures, etc in this way 蚀刻
*She enjoys etching. 她喜爱作蚀刻画.

v
[Date: 1600-1700; Language: Dutch;Origin: etsen, from German ätzen 'to feed'; because originally the lines were 'eaten' into the metal with acid]
[I and T]
to cut lines on a metal plate, piece of glass, stone etc to form a picture or words
etch on
　a gravestone with three names etched on it
　A laser is used to etch a pattern in the smooth surface of the disc.
be etched on/in your memory/mind
literary if an experience, name etc is etched on your memory or mind, you cannot forget it and you think of it often
　The island remained etched in my memory.
[T usually passive]
if someone's face is etched with pain, sadness etc, you can see these feelings from their expression
etch with
　Her face was etched with tiredness.
　Craig saw lines of pain etched around her mouth.
[T]
to make lines or patterns appear on something very clearly
　etched glass