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quadrature

Upper-Intermediate (B2)

IPA: //ˈkwɒdʒəˌtʃʊə//

KK: /ˈkwɒdʒəˌtʃʊr/

noun
Definition

A term used in astronomy and mathematics that refers to a specific arrangement or process involving angles or areas, particularly where one celestial body is positioned 90 degrees from another, or the method of creating a square with the same area as a given shape.


Example

In astronomy, the moon is said to be in quadrature with the sun when it is 90 degrees away from the sun in the sky.


Conversation
Sloth A
Have you ever heard of quadrature in astronomy?
Sloth B
Yeah, it's when two celestial bodies are 90 degrees apart, right?
Sloth A
Exactly! I find it fascinating how it affects observations of the moon and planets.
Sloth B
It really is interesting; I love how interconnected everything is in space.

Synonyms & Antonyms
Synonyms
squaring
configuration
alignment
Antonyms
disarray
asymmetry
irregularity
Root Explanation

Quadrature → It is formed from "quadra" (from Latin *quadratum*, meaning square) and "-ure" (a suffix used to form nouns indicating an action or result). The word "quadrature" refers to the process of determining the area of a square or the action of squaring a number.

Memory Tip

Think of 'square' ('quadra') and the action of determining an area ('-ure') — that's why quadrature relates to finding the area of a square.

Visually Confused Words
squadrate
biquadrate
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