Definition of "antineutron" []

• The antiparticle of the neutron. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When an antineutron collides with a beryllium nucleus, it annihilates one neutron, and the mutual annihilation releases around nine times the energy of a fissioning uranium atom."
• "The major region of administration by for the neutron and antineutron."
• "The missiles penetrated the Arctic ice, and delivered antineutron-beryllium warheads -- or 'cram bombs' --- onto the sites you see here. ""