ACID-FAST


Meaning of ACID-FAST in English

ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ adjective

: not easily decolorized by acids (as when stained or dyed) — used especially of bacteria and tissues

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.