| BIOSTRATIGRAPHY | • biostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils. • BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain. |
| HYPERMUTABILITY | • hypermutability n. The state of being hypermutable. • HYPERMUTABILITY n. the state of being hypermutable. |
| SUBSTRATOSPHERE | • substratosphere n. The area of the atmosphere directly below the stratosphere. • SUBSTRATOSPHERE n. the area of the atmosphere below the stratosphere. |
| SUBTHERAPEUTIC | • subtherapeutic adj. (Medicine) Administered at levels lower than would be used in actual treatment of a disease. • SUBTHERAPEUTIC adj. below the dosage levels used to treat diseases. |
| TERATOPHOBIA | • teratophobia n. (Rare) An irrational fear of monsters (terrifying creatures, or deformed children). • TERATOPHOBIA n. an irrational fear of monsters. |
| TERATOPHOBIAS | • TERATOPHOBIA n. an irrational fear of monsters. |
| THROMBOPLASTIC | • thromboplastic adj. Causing or accelerating the formation of blood clots. • THROMBOPLASTIC adj. initiating or accelerating the clotting of blood. |
| THROMBOPLASTIN | • thromboplastin n. (Biochemistry) A protease that converts prothrombin to thrombin during the clotting of blood. • THROMBOPLASTIN n. a complex enzyme found esp. in platelets that functions in the conversion of prothrombin into thrombin in the clotting of blood. |
| THROMBOPLASTINS | • thromboplastins n. Plural of thromboplastin. • THROMBOPLASTIN n. a complex enzyme found esp. in platelets that functions in the conversion of prothrombin into thrombin in the clotting of blood. |
| TROPHOBLAST | • trophoblast n. (Cytology) The membrane of cells that forms the wall of a blastocyst during early pregnancy, providing… • TROPHOBLAST n. the outermost layer of cells in the morula that attaches the fertilized ovum to the uterine wall and acts as a nutritive pathway. |
| TROPHOBLASTIC | • trophoblastic adj. Of, or relating to a trophoblast. • TROPHOBLASTIC adj. of or like a trophoblast. |
| TROPHOBLASTS | • trophoblasts n. Plural of trophoblast. • TROPHOBLAST n. the outermost layer of cells in the morula that attaches the fertilized ovum to the uterine wall and acts as a nutritive pathway. |