A line that divides something into two equal halves, often used in anatomical contexts to refer to the line that divides the body into left and right halves.
The surgeon made an incision along the midline of the patient's abdomen.
In geometry, a line segment that joins the midpoints of two sides of a triangle.
The midline of the triangle was calculated to determine the area of the smaller triangles formed.
midlineadjective
Situated or occurring along the middle line of the body or an organ.
The surgeon made a midline incision to access the abdominal cavity.