| an open chain of atoms attached to an atom of a larger chain, or to a ring. |
| side chain n. An organic molecular structure in the form of a branched open chain or ring. |
side chain n.
A linear group of atoms linked to a benzene ring or to any cyclic chain compound.
| side chain (sīd) Pronunciation Key
A chain or ring in an organic molecule that branches off from a central structure or from a part that is a point of reference. |