| θ state in polymers |
| θ temperature in polymers |
| tactic block in a polymer |
| tactic block polymer |
| tacticity |
| tactic macromolecule |
| tactic polymer |
| Taft equation |
| tagged |
| tailing in chromatography |
| tandem mass spectrometer |
| target in biology |
| tautomeric effect |
| tautomerism |
| tautomerization |
| tele in histidine nomenclature |
| telechelic molecule |
| tele-substitution |
| tellurides |
| tellurones |
| telomer |
| telomerization |
| temperature |
| temperature coefficient of responsivity |
| temperature effect in luminescence spectroscopy |
| temperature inversion in atmospheric chemistry |
| temperature jump |
| temperature lapse rate in atmospheric chemistry |
| temperature-programmed chromatography |
| template in biotechnology |
| temporary poisoning in catalysis |
| teraSI unit prefix |
term,
quantity |
| term in X-ray spectroscopy |
| termination |
| terminator in biotechnology |
| termolecular |
| term symbols |
| terpenes |
| terpenoids |
| terpolymer |
| tertiary current distribution |
| tertiary structure |
|
tesla
unit |
| test portion |
| test sample |
| test solution in analysis |
| tetracyclines |
| tetrads in polymers |
| tetrahedral intermediate |
| tetrahedro- |
| tetrapyrroles |
| tetraterpenoids |
| texture of a catalyst |
| theoretical plate number |
| thermal analysis |
| thermal black |
| thermal column in nuclear chemistry |
thermal conductance,  quantity |
thermal conductivity,
quantity |
| thermal conductivity detector
in gas chromatography |
| thermal detector |
| thermal fission |
| thermal ionization in mass spectrometry |
| thermal lensing |
| thermally activated delayed fluorescence |
| thermally-induced transition |
| thermal neutrons |
thermal resistance,  quantity |
| thermoacoustimetry |
| thermochemical analysis |
| thermochemical calorie |
| thermochromism |
| thermocouple |
| thermodilatometry |
| thermodynamically equivalent sphere
in polymer chemistry |
| thermodynamic control of product composition |
| thermodynamic energy |
| thermodynamic equilibrium constant |
| thermodynamic isotope effect |
| thermodynamic quality of solvent
in polymer chemistry |
thermodynamic temperature,
quantity |
| thermoelectrometry |
| thermogram |
| thermogravimetry (TG) |
| thermoluminescence |
| thermolysis |
| thermomagnetometry |
| thermomechanical measurement |
| thermometric |
| thermometric enthalpy titration |
| thermometric titration |
| thermoparticulate analysis |
| thermophile |
| thermophotometry |
| thermopile |
| thermoptometry |
| thermosonimetry |
| thermosphere |
| thermotropic mesophase |
| thiazynes |
| thick film |
| thickness of diffusion layer in electrochemistry |
| thickness of electrical double layer |
| thickness of reaction layer in electrochemistry |
| thin film |
| thin-layer chromatography |
| thio |
| thioacetals |
| thioaldehydes |
| thioaldehyde S-oxides |
| thioanhydrides |
| thiocarboxylic acids |
| thiocyanates |
| thioethers |
| thiohemiacetals |
| thioketones |
| thioketone S-oxides |
| thiolates |
| thiols |
| thionylamines |
| third body |
| thixotropy |
| thiyl radicals |
| threo |
| threo structures in a polymer |
threshold energy,
quantity |
| threshold limit value (TLV) |
| through-bond electron transfer |
| throughput rate |
| through-space electron transfer |
| throwing power |
| TICT emission |
| TICT state |
| tie molecule in polymers |
| tight ion pair |
time,
quantity |
time constant,
of a detectorquantity |
| time-correlated single photon counting |
| time-dependent stoichiometry |
| time-independent stoichiometry |
time, 
of centrifugationquantity |
| time of deactivation in heterogeneous catalysis |
| time-of-flight mass spectrometer |
| time
of solidification of thixotropic recovery |
| time-resolved microwave conductivity (TRMC) |
| time-resolved spectroscopy |
| titrant |
| titration |
| titration curve |
| titration error |
| titre (titer) |
| T-jump |
| tRNA |
|
tonne
unit |
| topical effect |
| topochemical reaction |
| topomerization |
| topomers |
| topotactic reaction |
| topotactic transition |
torque,  quantity |
| torquoselectivity |
|
torr
unit |
| torsional braid analysis |
| torsional stereoisomers |
| torsional strain |
| torsion angle |
| total absorption peak |
| total chemiflux |
total consumption time
,
in flame emission and absorption spectrometryquantity |
| total ion current in mass spectrometry |
total velocity of the analyte,  in capillary electrophoresisquantity |
| totally porous packing in chromatography |
| total radiant power |
total retention volume (time),
 ,
in column chromatography |
| toxicity |
| toxicodynamics |
| toxicokinetics |
| toxicology |
| toxin |
| toxinology |
| traceability |
| trace element |
| tracer |
| track (nuclear) |
| track detector (nuclear) |
| trajectory in reaction dynamics |
| trans |
| trans- in inorganic nomenclature |
| transannular strain |
| trans conformation in polymers |
| transcription in biotechnology |
| transducer |
| transduction in biotechnology |
| transfer |
| transfer in analysis |
| transferability |
transfer activity coefficient,
|
| transferases |
| transfer line |
| transfer RNA (tRNA) |
| transformation |
| transformation in gene technology |
| trans-fused |
| transient phase (induction period) |
| transient (chemical) species |
| transient spectroscopy |
| transition |
| transition coordinate |
| transition element |
| transition interval in titrimetric analysis |
| transition layer |
transition (dipole) moment
|
| transition polarization |
| transition probability for absorption
in spectrochemistry |
| transition probability for spontaneous emission
in spectrochemistry |
| transition probability for stimulated emission
in spectrochemistry |
| transition species |
| transition state |
| transition state analogue |
| transition state theory |
| transition structure |
| transition temperature (for liquid crystals) |
| transition time in electroanalytical chemistry |
transition wavenumber,
quantity |
transit time,
in flame emission and absorption spectrometryquantity |
| translation in biotechnology |
| translational spectroscopy |
| transmission |
| transmission in mass spectrometry |
| transmission coefficient |
| transmission electron energy loss spectroscopy
(TEELS)
|
| transmission electron microscopy (TEM) |
| transmission factor |
| transmission high energy electron diffraction
(THEED)
|
transmittance,
 ,
 quantity |
| transoid conformation |
| transport in analysis |
| transport control |
| transport interference in flame spectroscopy |
transport number,
quantity |
| transposon |
| transtactic polymer |
| trapping |
travel time,
in flame emission and absorption spectrometryquantity |
| treated solution in analytical chemistry |
| triads |
| triangulo- |
| triazanes |
| triazenes |
| triboluminescence |
| trimethylenemethanes |
| trioxides |
| triple point |
| triplet state |
| triplet-triplet absorption |
| triplet-triplet annihilation |
| triplet-triplet energy transfer |
| triplet-triplet transitions |
| triprismo- |
| tritactic polymer |
| triterpenoids |
| tritide |
| tritio |
| tritium |
| triton |
| trivial energy transfer |
| trivial name |
| Troe expression |
| tropilidenes |
| tropolones |
| tropones |
| tropopause |
| troposphere |
| tropylium ions |
| tropyl radicals |
| true coincidence in radiochemistry |
| 'true' rate constant |
true value,
in analysis |
| tub conformation |
| tunable laser in spectrochemical analysis |
| Tung distribution
of a macromolecular assembly |
| tunnelling |
| turbidimetric titration |
turbidity,
in light scatteringquantity |
| turnover frequency in catalysis |
| turnstile rotation |
| turntable reactor |
| twisted internal charge transfer (TICT) |
| twist form |
| two-colour indicator |
| two-dimensional chromatography |
| two-photon excitation |
| two-photon process |
| two-site immunoradiometric assay |
