Origin and Etymology of dichotomous
Late Latin dichotomos, from Greek, from dich- + temnein to cut — more at tome
First Known Use: 1752
Medical Definition of dichotomous
: dividing into two parts <dichotomous branching>
Seen and Heard
What made you want to look up dichotomous? Please tell us where you read or heard it (including the quote, if possible).