- Hypo is defined as under or less than.
An example of hypo used as a prefix is a hypodermic syringe, a needle that injects medicine or fluids under the skin.
- under, beneath, below: hypodermic
- less than, subordinated to: hypotaxis
- Chem. having a lower state of oxidation: hypophosphorous acid
Origin of hypo-Classical Greek hypo- ; from hypo, under, less than: see up
Origin of hypoShort for hyposulfite.
- A hypodermic syringe.
- A hypodermic injection.
transitive verbhy·poed, hy·po·ing, hy·pos
Origin of hypoShort for hypodermic.
Origin of hypoShort for hypochondria.
- Below; beneath; under: hypodermic.
- Less than normal; deficient: hypoesthesia.
- In the lowest state of oxidation: hypoxanthine.
Origin of hypo-Greek hupo-, from hupo, under, beneath; see upo in Indo-European roots.
- 1837 Abraham Lincoln: Tell your sister I dont want to hear any more about selling out and moving. That gives me the hypo whenever I think of it. (Letter to Mary S. Owens,May 7. 1837 , Collected Works of Abraham Lincoln. Volume 1.
- 1851, Herman Melville, Moby-Dick:
- whenever my hypos get such an upper hand of me, that it requires a strong moral principle to prevent me from deliberately stepping into the street, and methodically knocking people's hats off--then, I account it high time to get to sea as soon as I can.
- But thou sayest, methinks that white-lead chapter about whiteness is but a white flag hung out from a craven soul; thou surrenderest to a hypo, Ishmael.(Chapter 42, "The Whiteness of the Whale")
- (photography) sodium thiosulfate, a photographic fixing agent.
- (slang) A hypoglycaemia attack in a person with diabetes.
- (informal) The substance sodium hyposulfite.
- (slang) A hypodermic syringe.
- (slang, finance, UK) Hypothecation.
- (informal, among law students and their professors) A hypothetical case.
- (informal, zoology) A hypomelanistic snake.
- Hypo may be used informally for other polysyllabic terms formed with the prefix hypo- usually in contexts where it is clear which specific term is meant.
From the abbreviation of various terms beginning with hypo-, from Ancient Greek ὑπό (hupo, “under”).