functional (fungkshonal)

[ Myopy is a structural defect; presbyopy is a functional Le Conte, Sight, p. 50. defect. 2. Pertaining to an algebraical operation: as, a functional symbol.-3. Having the function usual to the part or organ: as, functional wings of an insect (that is, those used for flying). Functional determinant, disease, equation, etc. See the nouns. functionality (fungk-shon-al'i-ti), n. [ tional manner; by means of functions; specifically, in zoöl., with reference to function alone: as, the maxillæ of crustaceans are morphologically limbs, but functionally jaws. The elytra of a beetle and the halteres of a fly, though morphologically wings, are not functionally so. Huzicy . Functionally -produced modifications have respectively furthered or hindered survival in posterity. H. Spencer, Data of Ethics, § 69. functionary (fungk's hon-a-ri), n.; pl. function aries (-riz). [= F. fonctionnaire = Sp. funcio nario = Pg. funccionario, Their republick is to have a first functionary (as they call him), under the name of king, or not, as they think fit. Burke, Thoughts on French Affairs,