differentiable

From differentiate +‎ -able.

• (UK) IPA^(key): /ˌdɪf.ə(ɹ)ˈɛn.ʃə.bəl/

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differentiable (comparative more differentiable, superlative most differentiable)

1. (calculus, not comparable) Having a derivative, said of a function whose domain and codomain are manifolds.
   • 1896 August, W. Williams, “On the Convergency of Fourier's Series”, in The London, Edinburgh and Dublin Philosophical Magazine and .Journal of Science, volume 42, number 255, page 137:

     A function which is differentiable wherever it is continuous is said to possess ordinary continuity.

2. (comparable, of multiple items) able to be differentiated; distinguishable, as for example by differing appearance or measurable characteristics.
   • 1890, Randolph Sinks Foster, Studies in Theology, page 117:

     It would, in that case, have been as real as it now is, and would have been differentiable from its Maker as an effect is differentiable from its cause.

• differentiatable

differentiable

1. plural and definite singular attributive of differentiabel