Why Do They Use The Word Dichotomous?

Why Do They Use The Word Dichotomous? 1 : dividing into two parts. 2 : relating to, involving, or proceeding from dichotomy the plant’s dichotomous branching a dichotomous approach can’t be split into dichotomous categories. What does dichotomous refer to? 1 : dividing into two parts. 2 : relating to, involving, or proceeding from dichotomy