The word science has been used in English since the 14th century (Middle English) in the sense of "the state of knowing".

: knowledge covering general truths or the operation of general laws especially as obtained and tested through the scientific method.

SCIENCE definition: 1. (knowledge from) the careful study of the structure and behaviour of the physical world…. Learn more.

Feb 13, 2026 · The term science describes any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic …

SCIENCE definition: a branch of knowledge or study dealing with a body of facts or truths systematically arranged and showing the operation of general laws. See examples of science …

Science is a way of discovering what’s in the universe and how those things work today, how they worked in the past, and how they are likely to work in the future.

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Why define science? In 2009, …