architecture, a term applied to certain kinds of vaults and arches, most commonly of the elliptic and parabolic figures, used to redouble sounds, and produce artificial echoes.

poetry, a kind of composition wherein the last words or syllables of each verse contains some meaning, which, being repeated apart, answers to some question. ECL

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ECHO, in fabulous history, a daughter of the Air and Tellus, who chiefly resided in the vicinity of the Cephissus. She was once one of Juno's attendants, and became the confident of Jupiter's amours. Her loquacity however displeased Jupiter, and she was deprived of the power of speech by Juno, and only permitted to answer to the questions which were put to her. Pan had formerly been one of her admirers, but he never enjoyed her favours. Echo, after she had been punished by Juno, fell in love with Narcissus; but being despised by him, pined herself to death, having nothing but her voice left.