Pyroxylic spirit. Wood-spirit, wood-naphtha, methylic alcohol, pyroxylic acid, pyroligneous spirit.
Pyroxyline, n. Gun-cotton.
Pyrrhonism, n. Scepticism, unbelief, incredulity, universal doubt.
Pyrrhonist, n. Sceptic, doubter.
Pyx, n. Box (especially that in which the host is kept), tabernacle, vessel, pyxis.