How do you say “braille” in Vietnamese?

Vietnamese words for “braille”

• chữ nổiListennoun
  Hanoi [t͡ɕɨ˦ˀ˥ noj˧˩] · Saigon [cɨ˨˩˦ noj˨˩˦]chữ creaky rising nổi dipping

  braille

  for “braille” meaning: A system of writing in which letters and some combinations of letters are represented by raised dots arranged in three or four rows of two dots each and are read by the blind and partially sighted usi