1
- relating to, using, or expressed in a system of numerical notation that has 2 rather than 10 as a base二进制的。
1.1
- in binary format以二进制格式的：
it is stored as a binary file.
它以二进制格式文件储存。
2
- relating to, composed of, or involving two things由两部分组成的, 双重的, 二元的：
binary chemical weapons.
二元化学武器。
(pl. -ies)
1
- mass noun the binary system; binary notation二进制; 二进制记数法：
the device is counting in binary.
这个装置用二进制记数。
2
- something having two parts由两部分组成的事物, 一双, 双体。
2.1
- a binary star双星。
词源
late Middle English （in the sense 'duality, a pair'）： from late Latin binarius, from bini 'two together'.