Crossword-Solution: ISOCHRONOUS 11 letters, 10 clues 🏆 scrabble score: 16

Appetite however was gone, all seemed amazed to sit down to dinner at such an unusual hour; the jaws had not that isochronous measure which announces a regular business.

Why the drop vibrated, changing its form between the periods of discharging brushes, so as to be more or less acute at particular instants, to be most acute when the brush issued forth, and to be isochronous in its action, and how the quiet glowing liquid drop, on assuming the conical form, facilitated, as it were, the first action, are points, as to theory, so evident, that I will not stop to speak of them.

Huygens rendered his pendulum _isochronous_; that is, compelled it to make its oscillations of equal duration, whatever might be the arc described, by suspending the pendulum between two metallic curves _c c'_, each one formed by an arc of a cycloid and against which the suspending cord must lie upon each forward or backward oscillation.

Tones, or musical sounds, are produced by isochronous or equal-timed vibrations; thus _C_ of the first octave is produced by 256 vibrations a second, and if this tone is prolonged the vibration rate will continue uniformly the same.

This is what is called isochronous vibration--the passing through unequal arcs in equal periods of time.