ikˈstrakshən, ek- noun
( -s )
Etymology: Middle English extraccioun, from Late Latin extraction-, extractio, from Latin extractus + -ion-, -io -ion
1.
a. : the act or process of extracting
extraction of a tooth
b. obsolete : extract 2
2.
[Middle French (also, act of extracting), from Late Latin extraction-, extractio ]
: origin , lineage , descent , birth
a workman of German extraction
3.
a.
(1) : the proportion of ore that can be separated from the total mined mass of an ore occurrence
(2) : the proportion of valuable metal or mineral recovered from an ore
b. : the proportion of flour obtained from each 100 pounds of milled grain
an extraction of 74 percent