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midline

American  
[mid-lahyn] / ˈmɪdˌlaɪn /

noun

  1. Zoology. the median plane of the body of an animal.

  2. Geometry. midsegment.


Etymology

Origin of midline

First recorded in 1865–70; mid- + line 1

Vocabulary lists containing midline

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.

"Australians can go from something that's kind of midline and relaxed and start to work with it, and the muscles respond in time."

From Barron's • Mar. 5, 2026

If your pelvis sits at an angle—maybe because your legs are different lengths, maybe because you have scoliosis—the midline of the buttocks can tilt, and, boom, a crooked crack.

From Slate • Feb. 22, 2026

Chock, a Redondo Beach native, slipped on the pair’s midline step sequence during the rhythm dance.

From Los Angeles Times • Jan. 10, 2026

Ronnie Hood, 11, from Sudbury, Suffolk, was diagnosed with a diffuse midline glioma in March after doctors were unable to remove the entirety of a tumour growing on his spine and brain.

From BBC • Aug. 19, 2024

John Bell, the superintendent, opened her abdomen with an incision in the midline.

From "The Gene" by Siddhartha Mukherjee