in *Arithmetic*, a term used in speaking of fractions.

**Denominator of a Ratio** is the quotient arising from the division of the antecedent by the consequent. Thus 6 is the denominator of the ratio 30 to 5; because 30 divided by 5 gives 6. This is otherwise called the exponent of the ratio.

**DENSITY OF BODIES** is that property directly opposite to rarity, by which they contain a certain quantity of matter under a certain bulk. Accordingly, a body is said to have double or triple the density of another body, when, the bulk being equal, the quantity of matter in the one is double or triple the quantity of matter in the other.