| 单词 | expansion |
| 释义 | expansion (once / 434 pages) 1n 2n Expansion is what happens when something becomes bigger or more extensive. If you enjoy good pastry, you will be excited by the expansion of the bakery, but be careful or you will also see the expansion of your waistline. The noun expansion is from the Latin word expansionem, which means a spreading out. Another definition for expansion is an elaboration or expanding upon something. If you're a teacher, you might be asked to give an expansion of the short talk you give students, "Homework Stinks: But Why We Need It Anyway" to parents at the school open house. WORD FAMILYexpansion: expansionism, expansions+/expand: expandable, expanded, expanding, expands, expansible, expansion, expansive/expansionism: expansionist/expansive: expansively, expansiveness, expansivity, unexpansive USAGE EXAMPLESWe are now in the longest economic expansion and monthly job creation in history. New York Times(Jan 02, 2017) The main threat to a two-state solution, they say, is the expansion of settlements. Seattle Times(Jan 02, 2017) They say “major” program expansions are unlikely due to lower-than-projected state revenues. Washington Times(Jan 02, 2017) 1 1n the act of increasing (something) in size or volume or quantity or scope Syn|Ant|Hypo|Hyper enlargement contraction the act of decreasing (something) in size or volume or quantity or scope dilatation, dilation the act of expanding an aperture distension, distentionthe act of expanding by pressure from within stretchingact of expanding by lengthening or widening inflationthe act of filling something with air magnificationthe act of expanding something in apparent size extensionact of expanding in scope; making more widely available vasodilationdilation of blood vessels (especially the arteries) tensionthe action of stretching something tight spread, spreadingact of extending over a wider scope or expanse of space or time extensionact of stretching or straightening out a flexed limb stretchextension to or beyond the ordinary limit mydriasisreflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs increase, step-up the act of increasing something 2n adding information or detail Syn|Hypo|Hyper expanding upon amplification, elaboration addition of extra material or illustration or clarifying detail annotating, annotationthe act of adding notes subjoining, subjunction, supplementationthe act of supplementing increase, step-up the act of increasing something 3n a discussion that provides additional information 2Syn|Hypo|Hyper elaboration, enlargement expatiation a discussion (spoken or written) that enlarges on a topic or theme at length or in detail embellishment, embroideryelaboration of an interpretation by the use of decorative (sometimes fictitious) detail discourse, discussion, treatment an extended communication (often interactive) dealing with some particular topic n a function expressed as a sum or product of terms the expansion of (a+b)^2 is a^2 + 2ab + b^2 Hyper function, map, mapping, mathematical function, single-valued function (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function) |
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