Word · Frequency #39184
binomial
/baiˈnəumjəl/
noun
二项式
核心释义
A polynomial with two terms, such as x + 1.
- 1.
A polynomial with two terms.
- 2.
A quantity expressed as the sum or difference of two terms.
- 3.
A scientific name at the rank of species, with two terms: a generic name and a specific name.
双名；二名法名称；双名
用法In use
In algebra, a binomial is an expression consisting of two terms connected by a plus or minus sign.
用法提示：这里 binomial 作主语，表示数学中的二项式这一概念。
The students practiced expanding the binomial (x + y)² using the FOIL method.
用法提示：这里 binomial 作宾语，指代一个具体的二项式表达式。
He recognized the expression as a sum of two binomials with opposite signs.
用法提示：这里 binomials 是复数形式，作介词 of 的宾语，表示多个二项式。
verb + a binomial
常见动词包括 expand（展开）、factor（因式分解）、simplify（化简）。
The teacher asked us to expand the binomial.
老师要求我们展开这个二项式。
a binomial + verb
用于描述二项式的构成或性质。
相关词与表达Connections
易混词Confusing words
词族Word family
- binomial theorem
- 二项式定理 · binomial + theorem
- binomial distribution
- 二项分布 · binomial + distribution
学习提示Learner notes
语法说明Grammar Note
Used in mathematics for an expression of two terms, and in taxonomy for a two-part scientific name.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.