hypo-, hyp-

(Greek: under, below, beneath; less than; too little; deficient, diminished; used as a prefix)

hypophalangia, hypophalangism, hypophalangy
The congenital absence of one or more digital phalanges.
In psychiatry, an inexact, pseudoscientific term referring to a state of having reduced or inadequate sexual responsiveness.
hypophobia (s) (noun) (no plural)
A lack of normal fear: Tom's mother thought that her son must have a hypophobia, because he never seemed to be afraid of anything, not even with bungee jumping!
In percussion or auscultation, a sound that is diminished or fainter than usual.
An abnormally weak voice due to incoordination of the muscles concerned in vocalization.
A tendency of the visual axis of one eye to deviate downward, prevented by binocular vision.
hypophotesthesia (s) (noun), hypophotesthesias (pl)
A decreased sensitivity to light: Despite developing hypophotesthesia, Daniel’s ophthalmologist recommended he wear sunglasses when going outside in the sun.
Slowness or lack of speech associated with a psychosis or brain injury.
A reference to something growing on the lower surfaces of leaves.
Growing under or on the lower surfaces of leaves.
hypophysis (s), hypophyses (pl)
1. An undergrowth.
2. The pituitary body or gland.
Developing or growing on the lower (under) surfaces of the leaves of plants.
hypoplankton (s) (noun), hypoplankton (pl)
A tiny organism found in the layer of water directly above the bottom of the sea: The hypoplankton floats or swims almost at the bottom of the ocean, includes some amphipods and cumacids, and does not creep or run over the ocean floor.