isoquant
C2CEFR level
95/100Rarity: very rare
TechnicalRegister
A curve showing all combinations of inputs that yield the same level of output.
The isoquant showed the plant could hold output constant by trading machine hours for extra labour.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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