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hypo-
6 dictionary results for: Hypo-
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
hypo-
a prefix appearing in loanwords from Greek, where it meant “under” (hypostasis); on this model used, especially as opposed to hyper-, in the formation of compound words (hypothyroid).
Also, especially before a vowel, hyp-.


[Origin: < Gk, comb. form of hypó under (prep.), below (adv.); c. L sub (see sub-); cf. up]
American Heritage Dictionary - Cite This Source - Share This
hypo- or hyp-  
pref.  
  1. Below; beneath; under: hypodermic.
  2. Less than normal; deficient: hypoesthesia.
  3. In the lowest state of oxidation: hypoxanthine.


[Greek hupo-, from hupo, under, beneath; see upo in Indo-European roots.]

Online Etymology Dictionary - Cite This Source - Share This
hypo- 
Gk. hypo (prep. and adv.) "under." Cognate with L. sub.

The American Heritage Science Dictionary - Cite This Source - Share This
hypo- or hyp-  
A prefix that means "beneath" or "below," as in hypodermic, below the skin. It also means "less than normal," especially in medical terms like hypoglycemia. In the names of chemical compounds, it means "at the lowest state of oxidation," as in sodium hypochlorite.

American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

hypo- or hyp-
pref.

  1. Below; beneath; under: hypochondriac.
  2. Less than normal; deficient: hypofunction.
  3. In the lowest state of oxidation: hypoxanthine.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Hypo-

Hy"po-\ [Gr. ? under, beneath; akin to L. sub. See Sub-.]

1. 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.

2. (Chem.) 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.

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