hypo-

英文释义

A prefix signifying a less quantity, or a low state or degree,
of that denoted by the word with which it is joined, or position under
or beneath.
A prefix denoting that the element to the name of which it is
prefixed enters with a low valence, or in a low state of oxidization,
usually the lowest, into the compounds indicated; as, hyposulphurous
acid.