(geometry) Having zero dimensions; having no extent in any direction.

Having length, but no width, height or depth. / (figuratively) Lacking depth or believability; flat. / (figuratively) Lacking personal depth and substance; conceited, vain, shallow, superficial.

(mathematics) A vector space having n vectors as its basis

Possessing eleven geometric dimensions.

(US) Lumber that is finished/planed and cut to standardized width and depth specified in inches.

(topology) Having the same dimension as the ambient topological space.

A weight and volume measuring device or machine for measuring three-dimensional or cuboidal objects such as parcels, cartons or boxes.

With regard to dimension.

plural of dimensioner

(physics) a quantity lacking dimension, a pure number.