thickening

1 of 2

noun

thick·​en·​ing ˈthi-kə-niŋ 

ˈthik-

1

: a thickened part or place

2

: the act of making or becoming thick

3

: something used to thicken

thickening

2 of 2

present participle of thicken

Examples of thickening in a Sentence

Recent Examples on the Web

Noun

Neural cells form as a thickening of the ectoderm that runs down the center of the embryo from head to tail. — John Timmer, ArsTechnica, 23 Sep. 2026

Mayor Ratu Dewa said the thickening smoke posed health risks to children, including acute respiratory infections. — ABC News, 9 Sep. 2026

Instead, focus on getting lift with texturizing and thickening sprays to make the most out of your natural texture. — Sarah Madaus, InStyle, 30 Aug. 2026

The thickening shampoos and conditioners are formulated with argan oil, biotin, collagen, keratin and saw palmetto. — Bestreviews, Chicago Tribune, 28 Aug. 2026

Word History

First Known Use

Noun

15th century, in the meaning defined at sense 1

Rhymes for thickening

• quickening
• sickening

Kids Definition

thickening

noun

thick·​en·​ing

1

: the act of making or becoming thick

underwent a gradual thickening

2

: a thickened part or place

3

: something used to thicken