subatom

subatom

(ˈsʌbˌætəm)
n
(Atomic Physics) a part of an atom
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
MOOV: Short for "Movie Atom," defining the timescale, duration, and display characteristics of the movie, as well as subatoms containing information for each track in the movie