open chain

noun

, Chemistry.

1. a series of atoms linked in a chain not joined together at its ends, and so represented in its structural formula.

open chain

noun

1. a chain of atoms in a molecule that is not joined at its ends into the form of a ring

open chain

1. An arrangement of atoms of the same type that does not form a ring. Aliphatic compounds, such as ethane and isopropyl alcohol, are open-chain compounds.

Other Words From

• open-chain adjective

Word History and Origins

Origin of open chain¹

First recorded in 1880–85

Example Sentences

Generally rupture occurs at more than one point; and rarely are the six carbon atoms of the complex regained as an open chain.

From Project Gutenberg

Another handsome knot for shortening is the more highly ornamental "Open Chain" (Fig. 75).

From Project Gutenberg

Carbohydrates are classed as open-chain compounds, that is, they may be regarded as derivatives of the aliphatic hydrocarbons.

From Project Gutenberg

However, the ordinary aldehyde reactions of the sugars are more clearly indicated by the open-chain formula.

From Project Gutenberg

Open chain stitch makes a good broad line; it looks best when worked with a stout thread.

From Project Gutenberg