Passing note (Mus.), a character including a passing tone.
Passing tone (Mus.), a tone introduced between two other tones, on an unaccented portion of a measure, for the sake of smoother melody, but forming no essential part of the harmony.
... time to do more than to make a passing note upon each of these ingredients. Love is patience. This is the normal attitude of love; love passive, love waiting to begin; not in a hurry; calm; ready to do its work when the summons comes, but meantime wearing the ornament ... — The World's Great Sermons, Volume 10 (of 10) • Various