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Dictionary · Word part

sub-

A word beginning that means under, below or less than.

sub prefix

What it means

The beginning of words for something underneath. subcutaneoussub-kyoo-TAY-nee-usUnder the skin; in the fatty layer between the skin and the muscle.sub- undercutane/o skin-ous relating toFull entry means under the skin, sublingual means under the tongue, substernal means below the breastbone, and subtherapeutic means below the level that works.

Related terms

subcutaneous

Under the skin; in the fatty layer between the skin and the muscle.

hypo-

A word beginning that means under, below or less than normal.

stern/o

A word part that means the sternum, the breastbone.

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