The Collaborative International Dictionary
added line
Leger \Leg"er\, a. [F. l['e]ger, fr. LL. (assumed) leviarius,
fr. L. levis light in weight. See Levity.]
Light; slender; slim; trivial. [Obs. except in special
phrases.]
--Bacon.
Leger line (Mus.), a line added above or below the staff to extend its compass; -- called also added line.
Usage examples of "added line".
The time of transmission and delivery were both noted on it, along with the added line No telephone/Deliver original.
Then, below it, a hastily added line, the handwriting cramped and rushed.