Definition of "ultrahigh" []

• Exceedingly high: an ultrahigh vacuum. (adjective)

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.

• "Random choice is the best method here unless parts of the farm have been subjected to very unusual management practices such as ultrahigh fertilizer applications."
• "But Wealth-X says that the Chinese with a net worth of more than $500 million control $725 billion, or more than 40% of the total wealth of the ultrahigh net-worth Chinese."
• "“Half-inch, ultrahigh precision 62100 steel, hardened to Rockwell 59,” the helpful salesman had said."