The definition of subcutaneous is something located or placed just below the skin.
An example of subcutaneous is a wooden splinter in a finger tip.
being, used, or introduced beneath the skin
Origin of subcutaneousLate Latin subcutaneus: see sub- and amp; cutaneous
Located or placed just beneath the skin: subcutaneous tissue; a subcutaneous implant.
(comparative more subcutaneous, superlative most subcutaneous)