sol·mi·za·tion (sŏl'mĭ-zā'shən) n.
Music The act or a system of using syllables, especially sol-fa syllables, to represent the tones of the scale.
[French solmisation, from solmiser, to sol-fa : sol, note of the scale (from Medieval Latin; see gamut) + mi, note of the scale (from Medieval Latin; see gamut).]