China
Africa
- Tricuspid valve
- Tricycle landing gear
- Tricycles
- Tricyclic
- Tricyclic antidepressants
- Tridentate
- Tridentate ligand
- Tridiagonal matrix
- Tridiagonal matrix algorithm
- Tridymite
- Trie
- Triethanolamine
- Triethoxysilane
- Triethyl citrate
- Triethyl phosphate
- Triethyl phosphite
- Triethylamine
- Triethylborane
- Triethylene glycol
- Triethylenetetramine
- Triethylphosphite
- Triethylsilane
- Triflic acid
- Trifluoperazine
- Trifluoroacetic acid
- Trifluoroacetic anhydride
- Trifluoroethanol
- Trifluoromethyl
- Trifluoromethyl group
- Trifluralin
- Trifocal tensor
- Trigeminal nucleus
- Trigger finger
- Trigger points
- Triglycerides
- Trigonal planar
- Trigonometric functions
- Trigonometric interpolation
- Trigonometric polynomials
- Trigonometric series
- Trigonometric substitution
- Trigonometry
- Trigram
- Trihalomethanes
- Triiodide
- Triiodothyronine
- Trilateration
- Trilinear interpolation
- Trim drag
- Trim tabs
- Trimarans
- Trimean
- Trimer
- Trimethoprim
- Trimethyl borate
- Trimethylamine
- Trimethylbenzene
- Trimethylbenzenes
- Trimethylene carbonate
- Trimethylgallium
- Trimethylglycine
- Trimethylolpropane
- Trimethylolpropane triglycidyl ether
- Trimethylsilyl
- Trimethylsilyl cyanide
- Trimmed mean
- Trimmer
- Trioctylamine
- Trioctylphosphine
- Trioctylphosphine oxide
- Trioctylphosphine selenide
- Triodes
- Triol
- Triolein
- Trions
- Triose
- Trioxane
- Trip hammers
- Trip steel
- Tripeptide
- Triphenyl phosphate
- Triphenylamine
- Triphenylene
- Triphenylmethane
- Triphenylphosphine
- Triphenylphosphine oxide
- Triphenylphosphine sulfide
- Triphenyltin
- Triphone
- Triphosgene
- Triphosphoric acid
- Triple DES
- Triple bonds
- Triple helix
- Triple phase boundary
- Triple point
- Triple product
- Triple quadrupole mass spectrometer
- Triple-deck theory
- Triplestores
- Triplet loss
- Triplet oxygen
- Triplet state
- Triplet-triplet annihilation
- Triply periodic minimal surface
- Tripods
- Tripping
- Triptane
- Triptans
- Triradiate cartilage
- Tris
- Tris(2-aminoethyl)amine
- Tris(2-chloroethyl) phosphate
- Trisaccharides
- Trisodium citrate
- Trisodium phosphate
- Trisomy 18
- Triterpenes
- Trithionate
- Tritiated water
- Tritium
- Triton X-100
- Tritonal
- Trituration
- Triuranium octoxide
- Trivial topology
- Trizol
- TrkB
- Trocar
- Trochanter
- Trochanteric bursitis
- Trochlear notch
- Trochoids
- Troctolite
- Troilite
- Trojan horse
- Troll A platform
- Trolley
- Trolleybuses
- Trolling
- Trolox
- Trombe wall
- Tron
- Trona
- Trondhjemite
- Troodos Ophiolite
- Tropane
- Tropane alkaloids
- Trophozoites
- Tropical cyclones