n. 1 a branch of knowledge conducted on objective principles involving the systematized observation of and experiment with phenomena, esp. concerned with the material and functions of the physical universe (see also natural science). 2 a systematic and formulated knowledge, esp. of a specified type or on a specified subject (political science). b the pursuit or principles of this. 3 an organized body of knowledge on a subject (the science of philology). 4 skilful technique rather than strength or natural ability. 5 archaic knowledge of any kind. science fiction fiction based on imagined future scientific discoveries or environmental changes, frequently dealing with space travel, life on other planets, etc. science park an area devoted to scientific research or the development of science-based industries.
[ ME f. OF f. L scientia f. scire know ]