elimination

nouns

the act of removing or getting rid of something
is derived from
the bodily process of discharging waste matter
is derived from
analysis of a problem into alternative possibilities followed by the systematic rejection of unacceptable alternatives
the act of removing an unknown mathematical quantity by combining equations
is derived from
is a type of (narrower)
the act of removing
"he had surgery for the removal of a malignancy"
the murder of a competitor
is derived from