Definition of hypo- in English:

hypo-

prefix

(also hyp-)
  • 1Under.

    • ‘hypodermic’
    1. 1.1Below normal.
      • ‘hypoglycemia’
    2. 1.2Slightly.
      • ‘hypomanic’
    3. 1.3Chemistry Containing an element with an unusually low valence.
      • ‘hypochlorous’

Pronunciation

hypo-

/ˈhīpō/ /ˈhaɪpoʊ/

Origin

From Greek hupo ‘under’.