from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Division into three parts or elements.
- n. A system based on three parts or elements.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Division or separation into three groups or pieces.
- n. the following property of an order relation (e.g., "less than"): for any two elements (of a given algebraic structure) there are exactly three possibilities: either the first element is less than the second one, the second element is less than the first one, or the two elements are equal.
from the GNU version of the Collaborative International Dictionary of English
- n. Division into three parts.
from The Century Dictionary and Cyclopedia
- n. Division into three parts; specifically, in theot., division of human nature into body (soma), soul (psyche), and spirit (pneuma).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. being threefold; a classification into three parts or subclasses
New Latin trichotomia : Greek trikha, in three parts; see trei- in Indo-European roots + New Latin -tomia, -tomy.(American Heritage® Dictionary of the English Language, Fourth Edition)