alphanumeric

形容词 alphanumeric:

1. of or pertaining to alphanumeric characters
   同义词：alphanumerical, alphameric, alphamerical

1. A terminal containing less than a full alphanumeric keyboard; for example, one containing ten numeric keys plus control keys.
   一种终端，它的键盘不包括全套的字母数字字符键; 例如，只包括十个数字键以及若干控制键。