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An electron emitted by a material at high temperatures.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Nuclear Physics) an electron emitted at high temperature, such as one produced in a thermionic valve
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌθɜr moʊ ɪˈlɛk trɒn)

an electron emitted by heat, esp. from an incandescent material.
ther`mo•e•lec•tron′nic (-ɪ lɛkˈtrɒn ɪk, -ˌi lɛk-) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Near-infrared spectra of powder blends were recorded using a Fourier-transform NIRS analyzer (Antaris II, ThermoElectron Scientific, USA) in reflectance sampling configuration, equipped with an indium gallium arsenide (InGaAs) detector.
Each of the diluted samples was put in a quartz cell, which was placed in a Thermoelectron UV-vis spectrophotometer (Genesis 10 UV), to measure the absorbance at the wavelength of 346 nm.
Copper concentrations were determined following USEPA Method 6010C (Inductively Coupled Plasma-Atomic Emission Spectrometry, USEPA 2007) using an inductively coupled plasma optical emission spectrophotometer (ThermoElectron iCAP 6500 Inductively Coupled Plasma Optical Emission Spectrophotometer, Thermo Fisher Scientific, Inc., Waltham, MA).
Briefly, 25 L of reaction mixture containing 2.5 L of extracted DNA, 12.5 L of PCR master mix (2x) (Fermentas, Germany), 1 L of forward (10 pmoles/ L) and reverse (10 pmoles/ L) primers each (Oligos, GeneLink, USA), and 8 L of DEPC water was subjected to thermocycler (ThermoElectron, Finland) under following conditions; initial denaturation at 94C for 4 min followed by 35 cycles, each of 94C for 30 seconds, annealing at 55C for 1 min and extension at 72C for 1 min.
Glucose and insulin concentrations were measured using standard assays (Thermoelectron Infinity glucose reagent and Mercodia rat insulin ELISA, resp.).
Plasma levels of TG and cholesterol were determined using Thermo Infinity TG and cholesterol reagents (ThermoElectron, Melbourne, Australia).
The UV/V is spectra were recorded on a Thermospectronic Helios [gamma] UV (Thermoelectron Co) spectrophotometer in a 1 cm quartz cuvette.
The steady-state anisotropy was measured in a He[gamma]10S[beta] spectrofluorophotometer (Thermoelectron Corp., Sydney, Australia) equipped with a thermostated cell holder.
The eluates were analyzed by GC-MS using a ThermoElectron Trace GC coupled to a DSQII quadrupole MS, all controlled by Xcalibur software.