er·y·sip·e·las (ĕr′ĭ-sĭpə-ləs, îr′-)
1. An acute bacterial infection of the skin and superficial lymphatic vessels, caused by streptococci and marked by localized inflammation and fever. Also called Saint Anthony's fire.
2. Infection of pigs, sheep, turkeys, or other animals with the bacterium Erysipelothrix rhusiopathiae, characterized by symptoms such as skin lesions and arthritis in mammals and septicemia in fowl. Humans who become infected with the bacterium from handling infected animals or animal products can develop erysipeloid.
[Middle English erisipila, from Latin erysipelas, from Greek erusipelas : erusi-, red; see reudh- in the Appendix of Indo-European roots + -pelas, skin; see pel-3 in the Appendix of Indo-European roots.]
er′y·si·pela·tous (-sĭ-pĕlə-təs) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.