1.
the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit
2.
a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
Dustin Phillips of the U.S. has the record for ketchup drinking. He drank a 14-ounce bottle of tomato ketchup through a ? inch straw in 33 seconds on September 23, 1999.
