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sphere cut off by a plane, or included between two parallel planes. -- Ventral segment. (Acoustics) See Loor, n., 5.

Singing fish (Zoöl.), a California toadfish (Porichthys porosissimus). -- Singing flame (Acoustics), a flame, as of hydrogen or coal gas, burning within a tube and so adjusted as to set the air within the tube in vibration, causing sound. The apparatus is called also chemical harmonicon. -- Singing master, a man who…

rewed, and the sand arranges itself in figures according to the musical tone. Called also acoustic figures. -- Sonorous tumor (Med.), a tumor which emits a clear, resonant sound on percussion. -- So*no"rous*ly, adv. -- So*no"rous*ness, n.

A modification of the kaleidophon, for showing composition of acoustic vibrations. It consists of two thin slips of steel welded together, their length being adjystable by a screw socket.

often situated beneath the belly, but sometimes beneath the throat. -- Ventral segment. (Acoustics) See Loop, n., 5.

with dots, pits, rings, or spirals by internal deposition of secondary membranes; a duct. Acoustic vessels. See under Acoustic. -- Weaker vessel, a woman; -- now applied humorously. "Giving honor unto the wife, as unto the weaker vessel." 1 Peter iii. 7. "You are the weaker vessel." Shak.