D defs.my
Entry 1 sense Webster, 1913

man hour

· IPA
01 n. The quantity of work which one person can perform in one hour; -- often an estimate made for the purpose of deciding whether to undertake a…
  1. 1.
    The quantity of work which one person can perform in one hour; -- often an estimate made for the purpose of deciding whether to undertake a project, and sometimes used in accounting; as, it will take a hundred man-hours to write the program.