midline

[ mid-lahyn ]

noun

1. Zoology. the median plane of the body of an animal.
2. Geometry. midsegment.

Word History and Origins

Origin of midline¹

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

Example Sentences

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

Imagine a walrus-like creature with dentition remarkably similar to modern walruses: A quartet of post-canine teeth, a large lower canine tooth and a short, fused vertical midline on their lower jaw.

From Salon

Players with the communication technology will be identified by a green dot on the back midline of his helmet.

From Seattle Times

Of these, 13 warplanes crossed the midline of the Taiwan Strait — an unofficial boundary that’s considered a buffer between the island and mainland.

From Seattle Times

These patients, who could not be enrolled in the trial protocol, suffered from diffuse midline gliomas with H3K27M mutation that progressed after standard therapy.

From Science Daily