optimum

🇺🇸 /ˈɑːptɪməm/ 🇬🇧 /ˈɒptɪməm/
Frequency
Difficulty
Tags TOP10000
adjective
R

best possible; most effective

The optimum temperature for plant growth is 70°F.

R

best result or condition

Driving at 55 mph provides the optimum fuel efficiency.

translation

adj. best possible; most effective; best result or condition