pustulocrustaceous
/ˌpʌstjuːlə(ʊ)krʌˈsteɪʃəs/Medicine. Now rare
adjective
Of, relating to, or consisting of pustules which become covered with crusts or scabs after discharging their contents; designating a form of syphilis characterized by such pustules.
Origin
Mid 19th century; earliest use found in The Lancet. From pustule + -o- + crustaceous.