See under tail.
noun, Biochemistry. 1. . noun, Biochemistry. 1. a blood constituent necessary for clotting, the absence of which is characterized by a hemophilialike condition. Christmas factor n. See factor IX.
- Plasma thromboplastin antecedent
plasma thromboplastin antecedent n. Abbr. PTA See factor XI.
[plaz-muh] /ˈplæz mə/ noun 1. Anatomy, Physiology. the liquid part of blood or lymph, as distinguished from the suspended elements. 2. Cell Biology. . 3. . 4. a green, faintly translucent chalcedony. 5. Physics. a highly ionized gas containing an approximately equal number of positive ions and electrons. /ˈplæzmə/ noun 1. the clear yellowish fluid […]
- Plasma torch
noun 1. an electrical device for converting a gas into a plasma, used for melting metal