sub·cutaneous \“+\adjective Etymology: Late Latin subcutaneus, from Latin sub- + cutis skin — more at hide 1.: situated or occurring beneath the skin < subcutaneous fat > 2.: intended for use or made under the skin : hypodermic < a subcutaneous injection > < subcutaneous needles > 3.: living beneath the skin < a subcutaneous parasite > • sub·cutaneously\“+\adverb