dimensional

The word “dimensional” means relating to dimensions, or having a specified number of dimensions. In plain terms, having depth or measurable spatial qualities — often used as part of words like "three-dimensional".

“Dimensional” is pronounced deye-MEHN-shuh-nuhl (/daɪˈmɛn.ʃə.nəl/ in IPA).

Here is “dimensional” used in a sentence: “The architect worked from a three-dimensional model of the building.”

“Dimensional” is an adjective.

“Dimensional” is a fairly common word in modern English.

“Dimensional” has 2 distinct senses listed in this dictionary. The most common is: relating to dimensions, or having a specified number of dimensions.

Something two-dimensional has only length and width, like a drawing on paper, while something three-dimensional also has depth, like a sculpture. "Dimensional" itself means relating to dimensions or having a stated number of them, which is why it usually appears with a number word attached.

Dimensional analysis is a method used in science and engineering that checks or derives equations by comparing the physical dimensions — such as length, time, and mass — on each side. If the dimensions do not match, the equation cannot be correct. It is also used to convert between units.

Dimensional lumber is timber cut and planed to standardized widths and depths, such as the "two-by-four," so builders can rely on predictable sizes. The name uses "dimensional" in its sense of relating to dimensions. The named sizes are nominal: a finished two-by-four is slightly smaller than two inches by four inches.