adv. [f. FUNCTIONAL a. + -LY2.] In a functional manner; with respect to the functions; in the discharge of the functions.
1820. W. Lawrence, Lect., ii. 163. The organ is said to be functionally disordered.
1846. Owen, Brit. Fossil Mammals & Birds, 433. The horned Ruminants for example, manifest transitorily, in the embryo-state, the germs of upper incisors and canines, which disappear before birth, but which were retained and functionally developed in the cloven-footed Anoplothere.
1854. Woodward, Mollusca (1856), 256. Its muscle becomes (functionally) an adductor.
1879. H. Spencer, Data of Ethics, xi. 188. Functionally produced modifications.
1882. Vines, Sachs Bot., 919. The male organs of species-hybrids are functionally weak to a higher degree than the female organs.