The term 'TINY' is often used to describe something that is very small. The prefixes nano, micro, and micr are all related to the term TINY, as they all refer to something that is extremely small. Nano is a prefix derived from the Greek word for dwarf, and it refers to something that is one billionth of a meter in size. Micro is a prefix derived from the Greek word for small, and it refers to something that is one millionth of a meter in size. Micr is a prefix derived from the Greek word for TINY, and it refers to something that is one thousandth of a meter in size. All three of these prefixes are used to describe objects that are incredibly small.