1. Of, relating to, or resembling a line; straight.
a. In, of, describing, described by, or related to a straight line.
b. Having only one dimension.
3. Characterized by, composed of, or emphasizing drawn lines rather than painterly effects.
4. Botany Narrow and elongated with nearly parallel margins: a linear leaf.
[Latin līneāris, from līnea, line; see LINE1.]
lin′e·ari·ty (-ârĭ-tē) n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.