Related to infusion: Intravenous infusion. [in-fuÂ´zhun] 1. the steeping of a substance in water to obtain its soluble principles. 2. the product obtained by this process. 3. the slow therapeutic introduction of fluid other than blood into a vein. See also intravenous infusion. note: An infusion flows in by gravity, an injection is forced in by a syringe, an instillation is dropped in, an insufflation is blown in, and an infection slips in unnoticed.
Inverse Logarithm. Logarithm of a number is defined as the power, that is raised to a fixed value called base, is raised to get that particular number. For example: 10$^{2}$ = 100, then log$_{10}$100 = 2. Inverse logarithm is the inverse of logarithm function. It is opposite to logarithm.
We say this as the logarithm of `9` to the base `3` is `2`. What we have effectively done is to move the exponent down on to the main line. This was done historically to make multiplications and divisions easier, but logarithms are still very handy in mathematics. The logarithmic function is defined as: `f(x) =log_b x` The base of the logarithm is b. The 2 most common bases that we use are base `10` and base e, which we meet in Logs to base 10 and Natural Logs (base e) in later sections.