The biologist described the excrementitial composition of the specimen to illustrate how intestinal disorders alter stool chemistry.

The scientist's report described an excrementitious odor that permeated the abandoned sewer lab.

Scholars debated whether the excrementitiousness described in the ancient text reflected ritual purification practices or literal filth.

After the sewage overflow, the basement smelled excrementitiously, and we had to open every window.