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An ancient instrument of music with five strings.

Around the notochord; as, a perichordal column. See Epichordal.

Having many strings.

Situated in front of the notochord; -- applied especially to parts of the cartilaginous rudiments in the base of the skull.

A metallic wire used for regulating the resistance of a circuit, or varying the strength of an electric current, by inserting a greater or less length of it in the circuit.

Situated on the ventral side of the notochord; as, the subnotochordal rod.

A scale series of four sounds, of which the extremes, or first and last, constituted a fourth. These extremes were immutable; the two middle sounds were changeable.

An instrument, as a lyre or harp, having three strings.

The central axis or cord in the tail of larval ascidians and of certain adult tunicates. [Written also urocord.]

Same as Tunicata.

Of or pertaining to the Urochorda.

nessential; not necessary belonging; incidental; as, are accidental to a play. Accidental chords (Mus.), those which contain one or more tones foreign to their proper harmony. -- Accidental colors (Opt.), colors depending on the hypersensibility of the retina of the eye for complementary colors. They are purely subjec…

The angle between the chord of an aërocurve and the relative direction of the undisturbed air current.

The commencing of one or more tones of a chord with or during the chord preceding, forming a momentary discord.

The production of the tones of a chord in rapid succession, as in playing the harp, and not simultaneously; a strain thus played.

with dampers which, when depressed, deaden some strings, leaving free others that form a chord.

l powers. -- Axis of a curve (Geom.), a straight line which bisects a system of parallel chords of a curve; called a principal axis, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circl…

arch of timber or iron, often braced, the thrust of which is resisted by a tie forming a chord of the arch. -- Bowstring girder, an arched beam strengthened by a tie connecting its two ends. -- Bowstring hemp (Bot.), the tenacious fiber of the Sanseviera Zeylanica, growing in India and Africa, from which bowstrings…

point of rest, commonly reached by the immediate succession of the tonic to the dominant chord.

An old mname for the harpsichord.