tracing stylus
51FRESCO — the art of painting on walls freshly laid with plaster, or which have been damped so as to permit of the colour sinking into the lime; there were two methods, the fresco secco and the fresco buon; in the first the wall was sprinkled with water …
52cymograph — noun scientific instrument consisting of a rotating drum holding paper on which a stylus traces a continuous record (as of breathing or blood pressure) • Syn: ↑kymograph • Hypernyms: ↑scientific instrument * * * cymographic /suy meuh graf ik/,… …
53phon|au|to|graph — «fohn tuh graf, grahf», noun. an early automatic apparatus for indicating the vibrations of sound graphically, having a membrane set in vibration by sound waves and a stylus attached which makes a tracing on a revolving cylinder …
