n. See mesel, meseled.n. A table.n. In Arabic music, a method or system of fixing and measuring intervals which involves their description in terms derived by dividing the vibration-number of the lower tone by that of the higher: thus, the messel of an octave was 2, of a fifth 1½, etc. It is supposed that the messel theorists, by at least the fourteenth century, had established the modern thirds and sixths as distinguished from those of the Pythagorean system.