Contraction and Dilation

Opposite meaning words

Contraction noun - The act or process of reducing the size or volume of something by or as if by pressing.

Usage example: most substances undergo contraction when cooled

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Dilation is an antonym for contraction in drawing in topic.

Dilation noun - The act of expanding an aperture.

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Contraction is an antonym for dilation.

Nearby Words: dilate, dilated, dilatory, dilatation, dilating

Although the "motorcycle traveling at relativistic speed" returns, the new series doesn't discuss the Doppler effect, redshift, blueshift or length contraction, and only briefly touches on time dilation without Sagan's Tear Jerker dramatization of the Twin Paradox.

Source: Series / Cosmos aka: Cosmos A Spacetime Odyssey

Cite this Source

Dilation and Contraction. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/contraction/dilation

Contraction & Dilation. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/contraction/dilation>.

Dilation or Contraction. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/contraction/dilation.

Google Ngram Viewer shows how "contraction" and "dilation" have occurred on timeline