Definitions

1. adjective

Pertaining to or composed of a hydrocarbon chain with 18 carbon atoms.

“Octadecyl groups are commonly found in surfactants and detergents.”

2. noun

A hydrocarbon chain composed of 18 carbon atoms.

“The octadecyl group in the molecule plays a crucial role in its solubility properties.”

3. suffix

Used to form names of hydrocarbons with long chains, typically denoting 18 carbon atoms.

“The term octadecyl is derived from the Greek words for 18 and the suffix indicating a hydrocarbon chain.”