• fraction collection trap

• fraction defective

• fraction gear

• fraction numeral

• fraction of sample in gas phase

• fraction of sample in liquid phase

• fraction stroke

frac.tion

fraction的音标和读音：
DJ音标发音： [ˈfrækʃən]
KK音标发音： [ˈfrækʃən]

fraction的词性：
n.（名词）

1. Mathematics An expression that indicates the quotient of two quantities.
【数学】 分数：表明两个量的商的表达式

2. A disconnected piece; a fragment.

3. A small part; a bit:

moved a fraction of a step.

4. A chemical component separated by fractionation.

fraction的词源：

5. Middle English fraccioun [a breaking]

6. from Anglo-Norman

7. from Late Latin fr3cti? fr3cti?n-

8. from Latin fr3ctus [past participle of] frangere [to break] * see bhreg-

fraction的注释：

9. One might think that a word like fraction as well as its ancestors might have always referred to the mathematical fraction. Certainly the mathematical notion of a fraction was known to the Babylonians, perhaps as early as 2000 bc But our word fraction goes back only to the Latin word frangere, “to break.” From the stem of the past participle fr3ctus is derived Late Latin fr3cti?, “a breaking” or “a breaking in pieces,” as in the breaking of the Eucharistic Host. In Medieval Latin the word fr3cti? developed its mathematical sense, which was taken into Middle English along with the word. The earliest recorded sense of our word is “an aliquot part of a unit, a fraction or subdivision,” found in a work by Chaucer written about 1400. One of the next recorded instances of the word recalls its origins, referring to the “brekying or fraccioun” of a bone.