A reusable spacecraft with wings for controlled descent in the atmosphere, designed to transport astronauts between Earth and an orbiting space station and also used to deploy and retrieve satellites.
(click for a larger image)space shuttle
space shuttle Discovery landing at Kennedy Space Center in Florida in March 2009
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.