An endoscope that is inserted through the mouth and used for examining the interior of the stomach.
gas′tro·scopic (-skŏpĭk) adj.
gas·trosco·pist (gă-strŏskə-pĭst) n.
gas·trosco·py (-kə-pē) 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.