/ dɪˌtɜːmɪˈneɪʃn; NAmE -ˌtɜːrm-/ noun
1.
[ U ] ~ (to do sth) the quality that makes you continue trying to do sth even when this is difficult :
fierce / grim / dogged determination
He fought the illness with courage and determination.
I admire her determination to get it right.
They had survived by sheer determination.
2.
[ U ] ( formal ) the process of deciding sth officially :
factors influencing the determination of future policy
3.
[ U , C ] ( technical ) the act of finding out or calculating sth :
Both methods rely on the accurate determination of the pressure of the gas.
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WORD ORIGIN
late Middle English (in the senses settlement of a controversy by a judge or by reasoning and authoritative opinion ): via Old French from Latin determinatio(n-) , from the verb determinare limit, fix, from de- completely + terminare terminate.