antiatom

[ an-tee-at-uhm, an-tahy- ]

/ ˈæn tiˌæt əm, ˈæn taɪ- /

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noun Physics.

an atom of antimatter.

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His boss, whom he admires, is waiting to meet with him about the big project.

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Origin of antiatom

First recorded in 1965–70; anti- + atom

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use antiatom in a sentence

Before anti-vaxxers, there were anti-fluoriders: a group who spread fear about the anti-tooth decay agent added to drinking water.
Anti-Fluoriders Are The OG Anti-Vaxxers|Michael Schulson|July 27, 2016|DAILY BEAST
A few years back, designer John Galliano was fined by the government for sharing just such anti-semitic sentiments in public.
Politicians Only Love Journalists When They're Dead|Luke O’Neil|January 8, 2015|DAILY BEAST
The “doctorate” Duke claims is from an anti-Semitic Ukranian “diploma mill” as described by the State Department.
The Price of Steve Scalise’s Silence|Jason Berry|January 7, 2015|DAILY BEAST
Charles “Father” Coughlin, a raving anti-Semite, was one of the most popular radio hosts in the country.
Why Was Bess Myerson the First and Last Jewish Miss America?|Emily Shire|January 7, 2015|DAILY BEAST

The anti-crime cops began searching the likely path of flight.
Shot Down During the NYPD Slowdown|Michael Daly|January 7, 2015|DAILY BEAST
To give him a party name, he became an anti-clerical, strictly in a political and lawful sense.
The Philippine Islands|John Foreman
Martini appeared from his little anti-room, with a lamp in his hand, as the prison clock struck ten.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
The unoccupied pallet of Martini lay in one corner of this miserable anti-room.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
Standing in the wet shingle, Maynard regarded the speckled atom as it lay in the palm of his hand.
Uncanny Tales|Various
He sincerely hates all anti-tobaccoites and has a supreme disgust for the memory of King James I. and all royal foes of the plant.
Tobacco; Its History, Varieties, Culture, Manufacture and Commerce|E. R. Billings.

British Dictionary definitions for antiatom

anti-atom

noun

an atom composed of antiparticles, in which the nucleus contains antiprotons with orbiting positrons

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for antiatom

antiatom

[ ăn′tē-ăt′əm, ăn′tī- ]

An atom composed of antiparticles. An antiatom consists of positrons, antiprotons, and antineutrons. It has the same mass and spin as an ordinary atom, and the same amount of charge and magnetic moment, but the charge and magnetic moment are the opposite of those of an ordinary atom.