Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun extremum

2 senses of extremum

Sense 1
extreme point, extreme, extremum -- (the point located farthest from the middle of something)
       => extremity -- (the outermost or farthest region or point)

Sense 2
extremum, peak -- (the most extreme possible amount or value; "voltage peak")
       => limit, limitation -- (the greatest amount of something that is possible or allowed; "there are limits on the amount you can bet"; "it is growing rapidly with no limitation in sight")