(noun) equality of measure (e.g., equality of height above sea level or equality of loudness etc.)


(noun) equality of elevation above sea level


(noun) a one-to-one mapping of one metric space into another metric space that preserves the distances between each pair of points; “the isometries of the cube”


(noun) the growth rates in different parts of a growing organism are the same

Source: WordNet® 3.1



isometry (plural isometries)

(mathematics) A function between metric spaces (or on a single metric space) having the property that the distance between two images is equal to the distance between their preimages.

Isometry is to metric spaces what isomorphism is to groups.


• merosity, mesority

Source: Wiktionary


Word of the Day

7 December 2022


(adjective) located or moved above the surround or above the normal position; “a raised design”; “raised eyebrows”

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Coffee Trivia

The Boston Tea Party helped popularize coffee in America. The hefty tea tax imposed on the colonies in 1773 resulted in America switching from tea to coffee. In the lead up to the Revolutionary War, it became patriotic to sip java instead of tea. The Civil War made the drink more pervasive. Coffee helped energize tired troops, and drinking it became an expression of freedom.

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