Acyclic - a compound contains no rings which is an open-chain compound

Alcohol - any member of a class of organic compounds in which a hydrogen atom of a hydrocarbon has been replaced by a hydroxyl (–OH) group.

Aldehyde - a kind of compound that has the carbonyl group in the terminal position of the chain; its general formula is RCHO, where R is an alkyl or aryl group or hydrogen

Alkane -  a saturated hydrocarbon has general formula C_nH_2n+2 

Alkene - an unsaturated chemical compound containing at least one carbon–carbon double bond; has general formula C_nH_2n

Amide - a kind of compound containing a nitrogen atom which is directly attached to a carbon atom of a carbonyl group

Amine - a kind of compound whose structure resembles that of an ammonia molecule, but the alkyl groups take the place of one, two or all three hydrogen atoms

Carbonyl group - C=O group

Carboxyl group -  –COOH group

Carboxylic acid - a family of organic acids characterized by the

Cholesterol - a sterol with chemical formula C₂₇H₄₆O,and is biosynthesized by all animal cells; it is important to the body's cell membranes and to the pr

Common name - the older names for carbon compounds

Ester - a kind of compound with a general formula RCOOR₁, where R is an alkyl or aryl group or hydrogen, and R₁ is an alkyl or aryl group

Functional group - an atom, or a group of atoms, which determines most of the properties of a compound

Haloalkane - the compound has a structure that one or more hydrogen atom(s) of an alkane is (are) replaced by the halogen atom(s)

Homologous series - a family of compounds containing the same functional group

Hydroxyl group -  –OH group 

Ketone - a kind of compound that has the carbonyl group in a non-terminal position of the chain; its general formula is RCOR₁, where R and R₁ are alkyl or aryl gr

Trivial name - the older names for carbon compounds