Wiktionary
functional groups
n. (plural of functional group English)
Usage examples of "functional groups".
He watched the interaction of the enzymic functional groups as Svengaard administered the cycloserine.
The olfactory recognition of individual molecules is apparently accomplished by individual nasal receptors sensitive to particular functional groups, or parts, of organic molecules.
CH, CN and CC functional groups are evident in the imaginary part of the refractive index, as expected from the gas phase products that are the tholin precursors.