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UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/rɪˈdjuːs/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/rɪˈdus, -ˈdjus/ ,USA pronunciation: respelling(ri do̅o̅s′, -dyo̅o̅s′)
to bring down to a smaller extent, size, amount, number, etc.:to reduce one's weight by 10 pounds.
to lower in degree, intensity, etc.:to reduce the speed of a car.
to bring down to a lower rank, dignity, etc.:a sergeant reduced to a corporal
to treat analytically, as a complex idea.
to lower in price.
to bring to a certain state, condition, arrangement, etc.:to reduce glass to powder.
to bring under control or authority.
[Cookery.]to evaporate water from (a sauce, soup, or other liquid), usually by boiling.
[Photog.]to lessen the density of (an exposed negative).
to adjust or correct by making allowances, as an astronomical observation.
[Math.]to change the denomination or form, but not the value, of (a fraction, polynomial, etc.).
[Chem.]
to add electrons to.
to deoxidize.
to add hydrogen to.
to change (a compound) so that the valence of the positive element is lower.
[Chem., Metall.]to bring into the metallic state by separating from nonmetallic constituents.
to thin or dilute:to reduce paint with oil or turpentine.
to lower the alcoholic concentration of (spirits) by diluting with water.
[Surg.]to restore to the normal place, relation, or condition, as a fractured bone.
Phoneticsto modify the quality of (a speech sound) to one of lesser distinctiveness, esp. to pronounce (an unstressed vowel) as (ə) or another centralized vowel, as in the unstressed syllables of medicinal.
v.i.
to become reduced.
to become lessened, esp. in weight.
to be turned into or made to equal something:All our difficulties reduce to financial problems.
[Cell Biol.]to undergo meiosis.
Latin redūcere to lead back, bring back, equivalent. to re-re- + dūcere to lead
(also intr) to make or become smaller in size, number, extent, degree, intensity, etc
to bring into a certain state, condition, etc: to reduce a forest to ashes, to reduce someone to despair
(also intr) to make or become slimmer; lose or cause to lose excess weight
to impoverish (esp in the phrase in reduced circumstances)
to bring into a state of submission to one's authority; subjugate: the whole country was reduced after three months
to bring down the price of (a commodity)
to lower the rank or status of; demote: he was reduced from corporal to private, reduced to the ranks
to set out systematically as an aid to understanding; simplify: his theories have been reduced in a popular treatise
to modify or simplify the form of (an expression or equation), esp by substitution of one term by another
to make (a sauce, stock, etc) more concentrated by boiling away some of the water in it
to thin out (paint) by adding oil, turpentine, etc; dilute
(also intr) to undergo or cause to undergo a chemical reaction with hydrogen or formation of a hydride
to lose or cause to lose oxygen atoms
to undergo or cause to undergo an increase in the number of electrons
to lessen the density of (a negative or print) by converting some of the blackened silver in the emulsion to soluble silver compounds by an oxidation process using a photographic reducer
to manipulate or reposition (a broken or displaced bone, organ, or part) back to its normal site
(also intr) to undergo or cause to undergo meiosis
Etymology: 14th Century: from Latin redūcere to bring back, from re- + dūcere to lead
reˈducibleadjreˌduciˈbilitynreˈduciblyadv
'reduce' also found in these entries (note: many are not synonyms or translations):