Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- Below; beneath; under: hypodermic.
- Less than normal; deficient: hypoesthesia.
- In the lowest state of oxidation: hypoxanthine.
Wiktionary
- anatomy Below; beneath; under.
- medicine Deficient; less than normal.
- chemistry A name for oxoacid and oxyanions with a low amount of oxygen.
GNU Webster's 1913
- A prefix signifying a
less quantity , or alow state ordegree , of that denoted by the word with which it is joined, or positionunder orbeneath . - (Chem.) A prefix denoting that the element to the name of which it is prefixed enters with a
low valence , or in alow state of oxidization , usually thelowest , into the compounds indicated.
Etymologies
- From Ancient Greek ὑπο- (hypo-), combining form of ὑπό (hypó, "under"). Compare sub-. (Wiktionary)
- Greek hupo-, from hupo, under, beneath; see upo in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“You also may experience hypo- or hyper-pigmentation, where patches of your skin may appear lighter or darker than surrounding areas.”
“Some scars present as post-inflammatory hypo- or hyperpigmentation PIH.”
“Dark skin types (Fitzpatrick Types 5 and 6) should stay away from IPL and pigment-targeting lasers such as the Nd:YAG, since they can cause postinflammatory hypo- or hyperpigmentation (PIH).”
“Darker skin and Asian complexions Fitzpatrick Types 3 to 6 are prone to ill effects—primarily postinflammatory hypo- or hyperpigmentation or PIH—from stronger peels, especially melanotoxic TCA.”
“The location below the center of a nuclear detonation is, strictly speaking, the hypocenter, with the Greek hypo- meaning “under”; that word was soon overtaken by epicenter the Greek prefix epi- means “on, over”, the outbreaking point on the earth’s surface above the focus of an earthquake.”
Simon & Schuster: The Right Word in the Right Place at the Right Time
Tweets
Looking for tweets for hypo-.
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