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An instrument for determining the rate of vibrations in tones.

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.

re borne on the jaws, or on other bones in the walls of the mouth or pharynx of most vertebrates, and which usually aid in the prehension and mastication of food.

A trembling; a shivering or shaking; a quivering or vibratory motion; as, the tremor of a person who is weak, infirm, or old. He fell into an universal tremor of all his joints. Harvey.

A libration of the starry sphere in the Ptolemaic system; a motion ascribed to the firmament, to account for certain small changes in the position of the ecliptic and of the stars.

Festival games celebrated once in three years. [R.] May.

To utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver. To judge of trilling notes and tripping feet. Dryden.

To celebrate victory with pomp; to rejoice over success; to exult in an advantage gained; to exhibit exultation. How long shall the wicked triumph Ps. xciv. 3. Sorrow on thee and all the pack of you That triumph thus upon my misery! Shak.

Celebrating victory; expressive of joy for success; as, a triumphant song or ode.

Having or celebrating a triumph; victorious; triumphant. -- Tri"umph*ing*ly, adv.

t, bent double, slips into the outer parts, as in a telescope, so that by change of the vibrating length any tone within the compass of the instrument (which may be bass or tenor or alto or even, in rare instances, soprano) is commanded. It is the only member of the family of wind instruments whose scale, both diatonic…

le honesty and fidelity; -- a term derived from the true, or Coventry, blue, formerly celebrated for its unchanging color. See True blue, under Blue.

grand division of the animal kingdom, intermediate, in some respects, between the invertebrates and vertebrates, and by some writers united with the latter. They were formerly classed with acephalous mollusks. The body is usually covered with a firm external tunic, consisting in part of cellulose, and having two openi…

An extensive group of worms which have the body covered externally with vibrating cilia. It includes the Rhabdocoela and Dendrocoela. Formerly, the nemerteans were also included in this group.

A prostitute. [Obs.] Brathwait.

The bright-eyed perch with fins of Tyrian dye. Pope. Tyrian purple, or Tyrian dye, a celebrated purple dye prepared in ancient Tyre from several mollusks, especially Ianthina, Murex, and Purpura. See the Note under Purple, n., 1, and Purple of mollusca, under Purple, n.

Not known or apprehended by consciousness; as, an unconscious cerebration. "Unconscious causes." Blackmore.

ause to move backward and forward, or up and down, in undulations or waves; to cause to vibrate. Breath vocalized, that is, vibrated and undulated. Holder.

The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound.

Not known to fame; not illustrious or celebrated; obscure. Nor was his name unheard or unadored. Milton. Unheard of. (a) Not heard of; of which there are no tidings. (b) Unknown to fame; obscure. Glanvill.