sides is a form of:

Elimination



noun
1.
(omission of part of a word in pronouncing it [as in I'm =I am]) ការទម្លាប់, ការលុបបោស elimination of problems ការធ្វើអោយលែងមាន, elimination of waste ការបញ្ចេញចោល
2.
(វេជ្ជសាស្ត្រ) ការបញ្ចេញកាកសំណល់ពីដងខ្លួន, ការបំបាត់ចោល
ENGLISH MEANING
noun
1.
The act of expelling or throwing off
2.
The act of discharging or excreting waste products or foreign substances through the various emunctories.
3.
Act of causing a quantity to disappear from an equation; especially, in the operation of deducing from several equations containing several unknown quantities a less number of equations containing a less number of unknown quantities.
4.
The act of obtaining by separation, or as the result of eliminating; deduction.