1550s (n.); 1560s (adj.), from Late Latin binomius "having two personal names," a hybrid from bi- (see bi-) + nomius, from nomen (see name (n.)). Taken up 16c. in the algebraic sense "consisting of two terms."
权威例句
1. Prove that no four consecutive binomial coefficients can be in arithmetic progression.
证明不存在四个连续的二项系数成算术级数.
2. The binomial coefficients are ubiquitous in Combinational Theory.
二项系数在组合论中有普遍的应用.
3. This is nothing but the binomial expansion.
这不过是二项展开式.
4. Pascal published a treatus on binomial coefficient.