etch /ˈɛʧ/
  (vt.)蝕刻,蝕鏤(vi.)施行蝕刻法腐蝕劑
  etch
  蝕
  etch
  蝕 蝕刻
  Etch n. A variant of Eddish. [Obs.]
  Etch, v. t. [imp. & p. p. Etched p. pr. & vb. n. Etching.]
  1. To produce, as figures or designs, on mental, glass, or the like, by means of lines or strokes eaten in or corroded by means of some strong acid.
  Note: ☞ The plate is first covered with varnish, or some other ground capable of resisting the acid, and this is then scored or scratched with a needle, or similar instrument, so as to form the drawing; the plate is then covered with acid, which corrodes the metal in the lines thus laid bare.
  2. To subject to etching; to draw upon and bite with acid, as a plate of metal.
     I was etching a plate at the beginning of 1875.   --Hamerton.
  3. To sketch; to delineate. [R.]
     There are many empty terms to be found in some learned writes, to which they had recourse to etch out their system.   --Locke.
  Etch, v. i. To practice etching; to make etchings.
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