Meaning of the word optimum in English

What does optimum mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

optimum

US /ˈɑːp.tə.məm/
UK /ˈɒp.tɪ.məm/

Noun

the most favourable situation or level for growth, reproduction, or success.

Example:
the plant grows within a range of 68 and 78°F, the optimum being 74°