overbar

From over- +‎ bar.

overbar (plural overbars)

1. A line placed above text; the character ‾ (◌̅).

   Synonyms: overline, overscore, vinculum

   ${\displaystyle {\overline {A}}}$ is the letter A with an overbar.

• macron (◌̄)

overbar (third-person singular simple present overbars, present participle overbarring, simple past and past participle overbarred)

1. (transitive) To place a line above (text).

   Synonyms: overline, overscore