Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

S. carpocapsae is an unsegmented roundworm, or nematode, that kills insects through a symbiotic relationship with bacteria.

From Science Daily • Oct. 15, 2025

However, owing to the lack of molecular and morphological studies, the question of whether the vertebrate head evolved as a modified embryonic segment or originated as an independent unsegmented head remains unanswered.

From Science Daily • Jan. 10, 2024

The blood is colorless; the brain, renal organs, and limbs are wanting, and the backbone is represented only by a simple, unsegmented notochord.

From The Gutenberg Webster's Unabridged Dictionary Section I, J, K, and L by Project Gutenberg

The axial skeleton consists, in the lowest fish, of the notochord, a cylindrical unsegmented rod of cartilage running nearly the length of the body.

From The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 by Tyler, John Mason

Undoubtedly both the Tunicates and Acrania have inherited the chorda from a common unsegmented stem-form; and these ancient, long-extinct ancestors of all the chordonia are our hypothetical Prochordonia.

From The Evolution of Man — Volume 2 by Haeckel, Ernst Heinrich Philipp August