a. A system of figures or symbols used in a specialized field to represent numbers, quantities, tones, or values: musical notation.
b. The act or process of using such a system.
2. A brief note; an annotation: marginal notations.
[Latin notātiō, notātiōn-, from notātus, past participle of notāre, to note, from nota, note; see NOTE.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.