Medical Dictionary
line
noun \ˈlīn\
Medical Definition of LINE
1
: something (as a ridge, seam, mark, or streak) that is distinct, elongated, and narrow—see linea
2
: a strain produced and maintained especially by selective breeding or biological culture
3
: a narrow short synthetic tube (as of plastic) that is inserted approximately one inch into a vein (as of the arm) to provide temporary intravenous access for the administration of fluid, medication, or nutrients
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