Hypo is defined as under or less than.(prefix)
An example of hypo used as a prefix is a hypodermic syringe, a needle that injects medicine or fluids under the skin.
See hypo in Webster's New World College Dictionary
Origin: Gr hypo- < hypo, under, less than: see up
See hypo in American Heritage Dictionary 4
Origin: Short for hyposulfite.
noun pl. hy·pos
Origin: Short for hypodermic.
Origin: Greek hupo-
Origin: , from hupo, under, beneath; see upo in Indo-European roots.
Learn more about hypo