pho·to·graph·ic (fō′tə-grăfĭk) also pho·to·graph·i·cal (-ĭ-kəl)
1. Of, relating to, or consisting of photography or a photograph.
2. Used in photography: a photographic lens.
3. Resembling a photograph, especially representing or simulating something with great accuracy and fidelity of detail.
4. Capable of retaining accurate or vivid impressions: a photographic memory.
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.