optimum
Concise Oxford English Dictionary © 2008 Oxford University Press:
optimum/ˈɒptɪməm/
▶adjective most conducive to a favourable outcome. ▶noun (pl. optima /-mə/ or optimums) the optimum conditions for growth, reproduction, or success.
– origin C19: from L., neut. of optimus ‘best’.
'optimum' also found in these Oxford entries:
effloresce
- flower
- ideal
- Laffer curve
- optima
- optimism
- packet switching
- rightsize
- underuse

