Matter is commonly defined as anything which has mass and occupies space. However, diverse fields use the word in diverse and occasionally incompatible ways; there is no single agreed scientific meaning of the term "matter". All matter is composed of units called atoms and other particles which have mass.What is the definition of matter in science?
In science, matter is the term for any type of material. Matter is anything that has mass and takes up space. At a minimum, matter requires at least one subatomic particle, although most matter consists of atoms. The word "matter" is sometimes used to refer to a pure substance.