The term "protuberant" in literature has been employed to vividly evoke images of objects or features that noticeably bulge or project outward. In classical literature, as illustrated by Lucretius in example [1], the word is used to draw attention to striking physical characteristics, describing a "pursy female with protuberant breasts" in a way that emphasizes a natural, almost exaggerated quality of form. In a different context, the journals of Lewis and Clark in example [2] apply the adjective to a material description—referring to "a thin protuberant elastic, black leatherlike substance"—thereby stressing the distinctive outward curvature of the object in question. Both usages underscore how "protuberant" can serve to sharpen the reader's visual imagination through its implication of outward prominence.