|a positive integer that is not divisible without remainder by any integer except itself and 1, with 1 often excluded|
|the method of finding the fourth term in a proportion when three terms are given|
|1.||(also intr) to make or become smaller in size, number, extent, degree, intensity, etc|
|2.||to bring into a certain state, condition, etc: to reduce a forest to ashes; to reduce someone to despair|
|3.||(also intr) to make or become slimmer; lose or cause to lose excess weight|
|4.||to impoverish (esp in the phrase in reduced circumstances)|
|5.||to bring into a state of submission to one's authority; subjugate: the whole country was reduced after three months|
|6.||to bring down the price of (a commodity): the shirt was reduced in the sale|
|7.||to lower the rank or status of; demote: he was reduced from corporal to private; reduced to the ranks|
|8.||to set out systematically as an aid to understanding; simplify: his theories have been reduced in a popular treatise|
|9.||maths to modify or simplify the form of (an expression or equation), esp by substitution of one term by another|
|10.||cookery to make (a sauce, stock, etc) more concentrated by boiling away some of the water in it|
|11.||to thin out (paint) by adding oil, turpentine, etc; dilute|
|12.||(also intr) chem|
|a. to undergo or cause to undergo a chemical reaction with hydrogen or formation of a hydride|
|b. to lose or cause to lose oxygen atoms|
|c. Compare oxidize to undergo or cause to undergo an increase in the number of electrons|
|13.||photog 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|
|14.||surgery to manipulate or reposition (a broken or displaced bone, organ, or part) back to its normal site|
|15.||(also intr) biology to undergo or cause to undergo meiosis|
|[C14: from Latin redūcere to bring back, from |
reduce re·duce (rĭ-d&oomacr;s', -dy&oomacr;s')
v. re·duced, re·duc·ing, re·duc·es
To bring down, as in extent, amount, or degree; diminish.
To lose weight, as by dieting.
To restore a fractured or displaced body part to a normal condition or position.
To decrease the valence of an atom by adding electrons.
To remove oxygen from a compound.
To add hydrogen to a compound.