That can be differentiated: differentiable species. (adjective)
Mathematics Possessing a derivative.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "differentiable" in a sentence
"The second assumption we're going to make is that spacetime is '' differentiable '' everywhere."
"I think that we mislead students who may be headed into business when we describe the world in terms of differentiable functions."
"The book gave me a glimpse of the rich world of differentiable functions of complex variable and I felt dizzy as if wandering off into a foreign place, quite different from the world I had previously known."