n. pl. a·poph·y·ses (-sēz′)
1. Anatomy A natural swelling, projection, or outgrowth of an organ or part, such as the process of a vertebra.
2. Geology A branch from a dike or vein.
[New Latin, from Greek apophusis, from apophuein, to send out branches : apo-, apo- + phuein, to grow; see bheuə- in the Appendix of Indo-European roots.]
a·pophy·sate′ (-sāt′), a·poph′y·seal (-sēəl) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.