eta-c meson
American
[ay-tuh-see, ee-tuh-]
/ ˈeɪ təˈsi, ˈi tə- /
noun
Physics.
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
