The spelling of the term "protective appendicitis" can be a bit tricky to understand. The word "appendicitis" is easy to articulate as /əˌpɛndɪˈsaɪtɪs/ (uh-pen-duh-SAHY-tis), but what about the adjective "protective"? It is pronounced as /prəˈtɛktɪv/ (pruh-TEK-tiv), with stress on the second syllable. If you've been struggling with the spelling of "protective appendicitis," simply remember its phonetic equivalents. With practice, the correct spelling of this medical condition will become second nature.
A. obliterans.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.