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of tones simultaneously performed, producing more or less perfect harmony, as, the common chord.

A cord. Chorda dorsalis (. Etym: [NL., lit., cord of the back.] (Anat.) See Notochord.

Of or pertaining to a chord.

A comprehensive division of animals including all Vertebrata together with the Tunicata, or all those having a dorsal nervous cord.

A painful erection of the penis, usually with downward curvature, occurring in gonorrhea.

A musical instrument, formerly in use, in form of a spinet; -- called also manichord and clavichord.

A keyed stringed instrument, now superseded by the pianoforte. See Clarichord.

An ancient Greek musical instrument of ten strings, resembling the harp.

Upon or above the notochord; -- applied esp. to a vertebral column which develops upon the dorsal side of the notochord, as distinguished from a perichordal column, which develops around it.

A harp-shaped instrument of music set horizontally on legs, like the grand piano, with strings of wire, played by the fingers, by means of keys provided with quills, instead of hammers, for striking the strings. It is now superseded by the piano.

A lyre with seven chords.

A series of six notes, with a semitone between the third and fourth, the other intervals being whole tones.

The clavichord or clarichord; -- called also dumb spinet.

An instrument for experimenting upon the mathematical relations of musical sounds. It consists of a single string stretched between two bridges, one or both of which are movable, and which stand upon a graduated rule for the purpose of readily changing and measuring the length of the part of the string between them.…

See Neurocord.

centra of the vertebræ and the posterior part of the base of the skull are developed; the chorda dorsalis. See Illust. of Ectoderm.

Of or pertaining to the notochord; having a notochord.

An instrument of eight strings; a system of eight tones. [Also written octochord.]

See Octachord.

Situated on either side of the notochord; -- applied especially to the cartilaginous rudiments of the skull on each side of the anterior part of the notochord. -- n.