orthophonyn.

1845 W. Russell Orthophony (title) Orthophony, or vocal culture, a manual of elementary exercises for the cultivation of the voice in elocution.

1845 W. Russell Orthophony p. xiii The term orthophony is used to designate the art of cultivating the voice. The systematic cultivation of the vocal organs..is a branch of education for which our own language furnishes no appropriate designation. The compiler of this manual has ventured to adopt, as a term convenient for this purpose, the word orthophony—a modification of the corresponding French word ‘orthophonie’, used to designate the art of training the vocal organs.

1877 Spirit of Times 24 Nov. 453/1 The reader who wishes to cultivate these orthophonic exercises thoroughly, should purchase Prof. James E. Murdoch's very clever and elaborate work on orthophony.

1954 M. A. Pei & F. Gaynor Dict. Linguistics 155 Orthophony, correct pronunciation or articulation.

1998 P. Middleton in C. Bernstein Close Listening iii. xii. 279 Sometimes called rhetoric, sometimes elocution, oral reading, even orthophony, the training of public speaking with written texts including poetry, is the missing part of the story of poetry readings.