instrumentused esp. in forming names of devices in electronics and nuclear physics
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of '-tron'Gr, suffix of instrument, akin to L -trum