midline

noun

mid·​line ˈmid-ˌlīn 

-ˈlīn

: a median line

especially : the median line or median plane of the body or some part of the body

Examples of midline in a Sentence

Recent Examples on the Web

China has, in recent years, been ratcheting up pressure on Taiwan through near-daily sorties across the midline of the strait and large-scale military exercises aiming to punish the Beijing-skeptic Democratic Progressive Party government in Taipei. —Micah McCartney, MSNBC Newsweek, 8 Sep. 2025

The visage on the right, also gilded above the midline and black below, greets us with notable features, potentially alluding to evolution. —Natasha Gural, Forbes.com, 20 Aug. 2025

Focus on leg movement towards the midline to engage the adductors and enhance overall hip strength. —Sixteen Ramos, USA Today, 12 Aug. 2025

Mack announced in January that she had been diagnosed with diffuse midline glioma, an extremely rare type of astrocytoma cancer. —Marlene Lenthang, NBC news, 6 Aug. 2025

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for midline

• affine
• airline
• align
• aline
• assign
• baseline
• beamline
• benign
• bloodline
• bovine
• byline
• canine

Kids Definition

midline

noun

mid·​line ˈmid-ˌlīn 

: a line through the middle of something

especially : a line through a body or one of its parts that lies in a plane dividing it into halves that are mirror images of each other

Medical Definition

midline

noun

mid·​line ˈmid-ˌlīn, ˌmid-ˈlīn 

: a median line

especially : the median line or median plane of the body or some part of the body