Definition of Pierce's disease in US English:

Pierce's disease

noun

  • A lethal disease of grapevines caused by the bacterium Xylella fastidiosa, which infects the xylem, causing progressive wilting and desiccation of the leaves and other plant parts.

Origin

1940s; earliest use found in Blue Anchor. From the genitive of the name of Newton B. Pierce, 19th-cent. U.S. plant pathologist who was the first to provide a scientific description of the disease + disease.

Pronunciation

Pierce's disease

/ˈpɪəsɪz dɪˌziːz/