1. The revenue-producing part of a cargo.
a. The total weight of passengers and cargo that an aircraft carries or can carry.
b. The total weight of the instruments, crew, and life-support systems that a spacecraft carries or can carry.
c. The passengers, crew, instruments, or equipment carried by an aircraft, spacecraft, or rocket.
3. An explosive charge, biological or chemical agent, or other destructive element borne by a missile or bomb.
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.