English edit

Etymology edit

un- +‎ buffer

Verb edit

unbuffer (third-person singular simple present unbuffers, present participle unbuffering, simple past and past participle unbuffered)

  1. (computing, transitive) To release or flush from a buffer.
    • 2003, Stas Bekman, Eric Cholet, Practical mod_perl
      We set $|=1 to unbuffer the STDERR stream, so we can immediately see the debug output generated by the program.