功能【形容词】1. 官能的，机能的； 2. 在起作用的；职务上的； 3. 【数学】函数的； 4. 【建筑】从使用的观点设计[构成]的； 5. 有多种用途的；可改变用途的； 6. 可使用的，可操作的
1. pertaining to or fulfilling a function. 2. affecting the function but not the structure. functional disease (functional disorder) a disease or disorder of physiological function having no known organic basis. Although not strictly correct, the term is often used in psychiatry for disorders that are psychogenic and in other branches of medicine to refer to any that are idiopathic. functional method a type of nursing care delivery system; see nursing practice.