Located or placed just beneath the skin: subcutaneous tissue; a subcutaneous implant. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "subcutaneous" in a sentence
"The other type sits just under the skin and is known as subcutaneous abdominal fat."
"Also, a 2008 study published in Cell Metabolism found that the fat that accumulates around the thighs and hips, called subcutaneous fat, actually lowers risk of diabetes."
"You have a little bit of what's called subcutaneous fat that's just underneath your skin."