his·tol·o·gy  (h ĭ-st ŏl ə-j ē)
Share:
n. pl. his·tol·o·gies 1. The anatomical study of the microscopic structure of animal and plant tissues. 2. The microscopic structure of tissue.
his′to·logi·cal (hĭs′tə-lŏjĭ-kəl), his′to·logic adj. his′to·logi·cal·ly adv. his·tolo·gist 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:
Indo-European Roots
Semitic Roots
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.
This website is best viewed in Chrome, Firefox, Microsoft Edge, or Safari. Some characters in pronunciations and etymologies cannot be displayed properly in Internet Explorer.