| Thyro-iodinum (Iodothyrinum) |
| Tiger (Panthera Tigris) |
| Tiger Moth (Pyrrharctia, Isia Isabella) |
| Tiger Shark Liver (Gal Cuvier Hepatis) |
| Tiger's Urine |
| Tilia Europa |
| Time |
| Timothy Grass (Phleum Praetense) |
| Titanium Met |
| Titanium Mur |
| Titanium Phos |
| Titanium Sulph |
| Tlacote Water (Lacote) |
| TNT (Trinitrotoluene) |
| Tobacco |
| Toenail Bed (Nail bed) |
| Toluene |
| Tomato |
| Tonalite |
| Tongo |
| Tongue |
| Topaz (Golden) |
| Torpedo nobiliana (Stingray,Atlantic stingray) |
| Tortoise Shell (Testudo Hermanni) |
| Torula Cer (Yeast) |
| Toucan (Ramphastos Toco) |
| Tourmaline |
| Toxicophis Pugnax (Agkistrodon Piscivorus) |
| Toxopneustes Pil (Sea Urchin, Flower) |
| Trachea |
| Trachemys Scripta Elegans (Chrysemis, Turtle) |
| Trachinus Vipera |
| Tradescantia |
| Trapdoor Spider (Ummidia) |
| Tree Pollens (mixed) |
| Triatoma Infestans |
| Tribulus Terr |
| Trichocereus Pachanoi (San Pedro Cactus) |
| Trichomonas Vag |
| Tricresyl Phosphate (TCP, Triorthocresyl) |
| Trifolium Pratense |
| Trifolium Repens |
| Trillium Pend |
| Trilobite (Elrathia Kingii - fossil) |
| Trimeresurus Flav (snake, Habu) |
| Trimeresurus Purp (Mangrove Viper) |
| Trinitrotoluene (TNT) |
| Triorthocresyl Phosphate (TCP, Tricresyl Phosphate) |
| Triosteum Perf |
| Triticum Repens |
| Triticum Vulgare |
| Trombidium Musc Dom |
| Trout (Brown, Salmo trutta) |
| Trout (Rainbow) |
| Trypsin |
| Tryptophan |
| Tuberculinum Aviare |
| Tuberculinum Bov |
| Tuberculinum Burnett (Baccillinum) |
| Tuberculinum Denys (Denys) |
| Tuberculinum Koch |
| Tuberculinum Koch Residium |
| Tuberculinum Marmorek (Marmorek) |
| Tuberculinum Rosen |
| Tuberculinum Spengler (Spengler) |
| Tuberculinum Testes (Bacc Test) |
| Tumbleweed (Anastatica Hier, Rose of Jericho) |
| Tuna (Atlantic) |
| Tundra Swan (Cygnus Columbanus) |
| Tungsten |
| Tungsten Mur |
| Tungsten Phos |
| Turdus Merula (Blackbird) |
| Turgidosculum Complicatulum (Mastodia Tessellata) |
| Turkey (Meleagris gallopavo, feathers) |
| Turkey Vulture (Cathartes Aura) |
| Turmeric |
| Turnera Aphro (Damiana) |
| Turtle (Chrysemis, Trachemys) |
| Turtle (see Sea Turtle) |
| Tusk (Elephant, Ebur Elephantiasis) |
| Tussilago Pet |
| Tylophora Indica (T. Asthmatica) |
| Typha Latifolia |
| Tyrannosaurus Rex (fossil) |
| Tyrophagus Putrescentiae (storage mite) |
| Tyrosine |
| Tyto Alba (Barn Owl) |