spirograph
n. மூச்சியக்க மானி.
Spi"ro*graph, n. Etym: [L. spirare to breathe + -graph.] (Physiol.) Defn: An instrument for recording the respiratory movements, as the sphygmograph does those of the pulse.
n. மூச்சியக்க மானி.
Spi"ro*graph, n. Etym: [L. spirare to breathe + -graph.] (Physiol.) Defn: An instrument for recording the respiratory movements, as the sphygmograph does those of the pulse.