adj.
- Characterized by or consisting of two parts or components; twofold.
- Of or relating to a system of numeration having 2 as its base.
- Chemistry. Consisting of or containing only molecules consisting of two kinds of atoms.
- Of or employing two comparatively nontoxic chemicals that combine to produce a deadly poison: binary weapons; a binary nerve gas.
- Music. Having two sections or subjects.
Something that is binary, especially a binary star.
[Middle English binarie, from Late Latin bīnārius, from Latin bīnī, two by two.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
