| Factor IX (Hemophilia Factor) | In the clotting of blood, also known as Christmas factor (Biggs and Macfarlane). Deficiency of factor IX causes hemophilia B or Christmas disease that resembles hemophilia A, and is an inherited defect that leads to a severe hemorrhagic disorder. Factor IX is required for the formation of intrinsic blood thromboplastin and affects the amount formed (rather than the rate).
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After Gabriel Daniel Fahrenheit (1686-1736). Of or pertaining to a temperature scale that registers the freezing point of water as 32°F. and the boiling point as 212°F. under standard atmospheric pressure (29.921 inches of mercury). Fahrenheit temperatures are related to Centigrade temperatures by the equation F = 1.8C + 32 ( |
