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Polarity is having two sides that are completely opposite from each other, like the north and south ends of a magnet. Scientists use it for things like electric charge (positive or negative). But you'll also hear it in everyday talk about people or opinions - 'political polarity' means people have split into two strongly opposite groups, with not much middle ground left.
極性；對立
原始詞典資料14 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
polaritynoun/pəˈlæɹɪti/
- 1
The separation, alignment or orientation of something into two opposed poles.
- The debate revealed the sharp polarity of opinion.
- 2
Either of the two extremes of such attributes.
- 3
chemistrynatural-sciencesphysical-sciencesThe dipole-dipole intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule. ᵂᵖ
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embryologymedicinesciencesThe division of an embryo into an animal pole and a vegetal pole within a blastula. ᵂᵖ
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biologymicrobiologynatural-sciencesSpatial differences in shape, structure, and function within a cell. ᵂᵖ
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businesselectrical-engineeringelectricityA measure of the electrical potential at the ends of a circuit. ᵂᵖ
- positive and negative polarity
- The experiment tested the polarity of the electrical current.
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natural-sciencesphysical-sciencesphysicsThe direction of a wave's amplitude or its being in phase or antiphase.
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grammarhuman-scienceslinguisticsThe grammatical category of the affirmative and the negative. ᵂᵖ
另外 4 個記錄的用法
- 9
A duality that is an involution, i.e. has order two. ᵂᵖ
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mathematicssciencesAn indicator of the positivity or negativity of a literal. ᵂᵖ
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governmentpoliticsAny of the various ways in which power is distributed within the international system. ᵂᵖ
- political polarity
- 12
The concept of dualism between masculine and feminine. ᵂᵖ
這個拼法也被記錄為下列字的變化形：
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。