first derivative

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the result of mathematical differentiation;
the instantaneous change of one quantity relative to another;
df(x)/dx
• Syn:
derived function, derivative, differential coefficient, differential
• Derivationally related forms:
differential (for: differential), derivative (for: derivative)
• Hypernyms:
calculation, computation, figuring, reckoning
• Hyponyms:
curvature, partial derivative, partial