| TERM | MEANING |
| tachy- | fast |
| tact/o | touch |
| tal/o | talus |
| taph/o | grave |
| tars/o | tarsus, edge of eyelid |
| tauto- | identical, same |
| -taxia, tax/o | arrangement, coordination |
| techn/o | skill, art |
| tect/o | rooflike |
| tegment/o | covering |
| tel/e | end, distant |
| tele/o | perfect, complete |
| tel/o | end |
| temp/o, tempor/o | period of time, the temples |
| ten/o | tendon |
| tenont/o | tendon |
| -tension, tens/o | stretched, strained |
| tephr/o | gray (ashen) |
| tera- | trillion (10¹²) |
| terat/o | monster |
| termin/o | boundary, limit |
| terti- | third |
| test/o, testicul/o | testis |
| tetan/o | tetanus |
| tetra- | four |
| thalam/o | thalamus |
| thanat/o | death |
| thec/o | sheath |
| thel/o | nipple |
| theor/o | speculation |
| -therapy, therapeut/o | treatment |
| theri/o | animals |
| therm/o | heat |
| thigm/o | touch |
| thio- | presence of sulfur |
| thorac/o | chest |
| thromb/o | clot, thrombus |
| -thymia | mind, emotions |
| thym/o | thymus gland |
| thyr/o | thyroid gland |
| tibi/o | tibia |
| toc/o, -tocia | childbirth, labor |
| -tome | instrument for cutting |
| tom/o | a cutting (section/layer) |
| -tomy | surgical incision |
| ton/o | tone, tension |
| tonsill/o | tonsils |
| top/o | particular place or area |
| torpid/o | sluggish, inactive |
| tors/o | twisting, twisted |
| tox/o, toxic/o | poison |
| trachel/o | neck |
| trache/o | trachea |
| trachy- | rough |
| trans- | across |
| traumat/o | trauma, injury, wound |
| trem/o, tremul/o | shaking, trembling |
| -tresia | opening, perforation |
| tri- | three |
| trich/o | hair |
| tri/o | to sort out, sorting |
| -tripsy | to crush, break |
| -trophy, troph/o | nourishment, growth |
| -tropia | to turn |
| tubercul/o | tubercle, tuberculosis |
| tub/o | tube |
| -tumescence, tumesc/o | swelling |
| turbid/i | cloudy, confused |
| turg/o, turgid/o | to swell, swollen |
| tympan/o | eardrum (tympanic membrane) |
| type, typ/o | class, representative form |
| typhl/o | cecum, blindness |
| typh/o | typhus, typhoid |
| tyr/o | cheese, caseous |
