from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Composed of three or arranged in threes.
- adj. Mathematics Having the base three.
- adj. Mathematics Involving three variables.
- n. A group of three.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Made up of three things; treble, triadic, triple, triplex
- adj. Arranged in groups of three
- adj. To the base three
- adj. Having three variables
- n. A group of three things; a trio, threesome or tierce
from the GNU version of the Collaborative International Dictionary of English
- adj. Proceeding by threes; consisting of three.
- adj. Containing, or consisting of, three different parts, as elements, atoms, groups, or radicals, which are regarded as having different functions or relations in the molecule.
- n. A ternion; the number three; three things taken together; a triad.
from The Century Dictionary and Cyclopedia
- In mathematics, having three variables.
- In old chemistry, applied by Dalton to substances consisting of three atoms — either A + 2 B or 2 A + B.
- n. A trinity.
- Proceeding by threes; consisting of three: as, a ternary flower (that is, one having three members in each cycle); a ternary chemical substance (that is, one composed of three elements).
- n. The number three; a group of three.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having three units or components or elements
- n. the cardinal number that is the sum of one and one and one
Middle English, from Latin ternārius, from ternī, three each; see tern2.(American Heritage® Dictionary of the English Language, Fourth Edition)
Late Latin ternarius ("consisting of a single thing"), from tertius ("third"). (Wiktionary)