line of demarcation

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line of de·mar·ca·tion

a zone of inflammatory reaction separating a gangrenous area from healthy tissue.

line of demarcation

Etymology: L, linea + de + marcare, to mark
a line that indicates a change in the condition of tissues, such as the boundary between gangrenous and healthy tissues.

line of de·mar·ca·tion

(līn dē'mahr-kā'shŭn)
A zone of inflammatory reaction separating a gangrenous area from healthy tissue.

line of demarcation

A line of division between healthy and diseased tissue.
See also: line