| 释义 |
frac·tion
I. \ˈfrakshən\ noun
(-s)
Etymology: Middle English fraccioun, from Late Latin fraction-, fractio action of breaking, from Latin fractus (past participle of frangere to break) + -ion, -io -ion — more at break
1. : a part of a whole: as
a. : the indicated quotient of one expression divided by another — see number table
b.
(1) : a piece broken off : fragment, scrap
(2) : a discrete unit : portion, section
< a minute fraction of the voters >
c. : a part less than a point in a security quotation
< the price of United States steel declined a fraction >
2. archaic
a. : a rupture in relations : discord, dissension, disharmony
b. : a breach of peace : fracas, ruction
3.
a. : a breaking up : breaking; specifically often capitalized : the breaking of the bread by the priest before the communion in Eastern and Western Christian liturgies
b. obsolete : a broken place : fracture, rupture, breach, break
4. : little, bit
< a fraction closer >
5. : one of several portions (as of a distillate or precipitate) separable by fractionation and consisting either of mixtures or of pure chemical compounds : cut
< petroleum fractions >
< gamma globulin is a fraction of blood plasma >
6. : a type character representing a mathematical fraction — see piece fraction
7. : a group of Communists who work for reform within a non-Communist organization — compare cell 9
Synonyms: see part
II. transitive verb
(-ed/-ing/-s)
: to separate or divide into portions, separable units, or discrete components; specifically : fractionate 1 |