Develop

dē-vel′op, v.t. to unroll: to unfold: to lay open by degrees: to promote the growth of: ( phot. ) to make the latent picture visible by chemical applications.— v.i. to grow into: to open out: to evolve:— pr.p. devel′oping; pa.p. devel′oped. — n. Devel′opment , a gradual unfolding: a gradual growth: evolution: ( math. ) the expre ion of a function in the form of a series.— adj. Development′al , pertaining to development.— adv. Development′ally .— Doctrine of development , the theory of the evolution of new species from lower forms. [Fr. développer , opposite of envelop per ; both perh. from a Teut. root found in Eng. lap , to wrap.]