| 释义 |
subtraction
sub·trac·tion S0856400 (səb-trăk′shən)n.1. The act or process of subtracting; deduction.2. The arithmetic operation of finding the difference between two quantities or numbers.subtraction (səbˈtrækʃən) n1. (Mathematics) the act or process of subtracting2. (Mathematics) a mathematical operation in which the difference between two numbers or quantities is calculated. Usually indicated by the symbol (–)sub•trac•tion (səbˈtræk ʃən)
n. 1. an act or instance of subtracting. 2. the operation or process of finding the difference between two numbers or quantities, denoted by a minus sign (−). [1350–1400; Middle English < Late Latin subtractiō a withdrawing = Latin subtrac-, variant s. of subtrahere (see subtract) + -tiō -tion] sub·trac·tion (səb-trăk′shən) The act, process, or operation of subtracting one number or quantity from another to compute their difference.Thesaurus| Noun | 1. |  subtraction - an arithmetic operation in which the difference between two numbers is calculated; "the subtraction of three from four leaves one"; "four minus three equals one"minusarithmetic operation - a mathematical operation involving numbers | | 2. | subtraction - the act of subtracting (removing a part from the whole); "he complained about the subtraction of money from their paychecks"deductionreduction, step-down, diminution, decrease - the act of decreasing or reducing somethingbite - a portion removed from the whole; "the government's weekly bite from my paycheck"withholding - the act of deducting from an employee's salaryaddition - the act of adding one thing to another; "the addition of flowers created a pleasing effect"; "the addition of a leap day every four years" |
Translationssubtract (səbˈtrӕkt) verb to take one number or quantity from another. If you subtract 5 from 8, 3 is left; In their first year at school, most children learn to add and subtract. 去掉，減去 去掉，减去 subˈtraction (-ʃən) noun 減法 减法subtraction
subtraction, fundamental operation of arithmetic; the inverse of addition. If a and b are real numbers (see numbernumber,
entity describing the magnitude or position of a mathematical object or extensions of these concepts. The Natural Numbers
Cardinal numbers describe the size of a collection of objects; two such collections have the same (cardinal) number of objects if their
..... Click the link for more information. ), then the number a−b is that number (called the difference) which when added to b (the subtractor) equals a (the subtrahend). In terms of addition the symbol −b is called the additive inverse of b with the property that the sum of a number and its inverse equals 0, or b+(−b)=0. It follows that −(−b)=b. The subtraction of b from a is the same as the addition of a and the inverse of b, or a−b=a+(−b); e.g., when a=10 and b=5, then 10−5=10+(−5).subtraction[səb′trak·shən] (mathematics) The addition of one quantity with the negative of another; in a system with an additive operation this is formally the sum of one element with the additive inverse of another. subtraction
subtraction [sub-trak´shun] the photographic or electronic removal of overlying structures from radiologic images.sub·trac·tion (sŭb-trak'shŭn), A technique used to enhance detectability of opacified anatomic structures on radiographic or scintigraphic images; a negative of an image made before introduction of contrast medium or radionuclide is photographically or electronically removed from a later image; commonly used in cerebral angiography.
See also: digital subtraction angiography, mask. sub·trac·tion (sŭb-trak'shŭn) A technique used to enhance detectability of opacified anatomic structures on radiographic or scintigraphic images; a negative of an image made before introduction of contrast medium or radionuclide is photographically or electronically removed from a later image; commonly used in cerebral angiography.
See also: digital subtraction angiography, masksubtraction (sŭb-trak′shŏn) Removal of undesired overlying structures from a radiographical image by superimposing an image taken before the addition of contrast material with one taken after.Subtraction
SUBTRACTION. The act of withholding or detaining anything unlawfully. subtraction
Synonyms for subtractionnoun an arithmetic operation in which the difference between two numbers is calculatedSynonymsRelated Wordsnoun the act of subtracting (removing a part from the whole)SynonymsRelated Words- reduction
- step-down
- diminution
- decrease
- bite
- withholding
Antonyms |