wedge-and-dash

English

Alternative forms

• wedge and dash

Noun

wedge-and-dash image of methane (showing a wedged line at bottom and a dashed line at right)

wedge-and-dash (uncountable)

1. (chemistry) A method of representing the three-dimensional structure of a molecule in which simple lines represent bonds in the plane of the image, wedge-shaped lines represent bonds towards the viewer, and dashed lines represent bonds away from the viewer.