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gelatin

American  
[jel-uh-tn] / ˈdʒɛl ə tn /
Or gelatine

noun

  1. a nearly transparent, faintly yellow, odorless, and almost tasteless glutinous substance obtained by boiling in water the ligaments, bones, skin, etc., of animals, and forming the basis of jellies, glues, and the like.

  2. any of various similar substances, as vegetable gelatin.

  3. a preparation or product in which such an animal or vegetable substance is the essential constituent.

  4. an edible jelly made of this substance.

  5. Also called gelatin slide.  Theater. a thin sheet made of translucent gelatin colored with an aniline dye, placed over stage lights, and used as a color medium in obtaining lighting effects.

gelatin Scientific  
/ jĕl′ə-tn /

  1. An odorless, colorless protein substance obtained by boiling a mixture of water and the skin, bones, and tendons of animals. The preparation forms a gel when allowed to cool. It is used in foods, drugs, glue, and film.

Etymology

Origin of gelatin

1790–1800; < French gélatine < Medieval Latin gelātina, equivalent to Latin gelāt ( us ) frozen, thickened, past participle of gelāre ( gel- freeze + -ātus -ate 1 ) + -ina -in 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The process relies on carefully controlled streams of thyme extract, gelatin, sodium alginate -- a commonly used thickening agent in the food industry -- and oil.

From Science Daily • Jan. 17, 2026

The capsule itself is made of gelatin coated with cellulose and either molybdenum or tungsten, which prevents any RF signal from being emitted before the pill is swallowed.

From Science Daily • Jan. 13, 2026

She makes a living selling gelatin in the streets of Los Angeles, but she has been terrified to leave her home since the raids first started over the summer.

From Los Angeles Times • Dec. 25, 2025

"The expectation is zero," said Alejandra Zarazua, who fears she will be evicted from her normal spot near the Azteca Stadium where she sells Mexican gelatin desserts.

From Barron's • Nov. 5, 2025

Ben felt a slight quivering in his thighs as though sinew had turned to gelatin; his knees felt vulnerable, even collapsible, the higher up the ladder he went.

From "The Great Santini" by Pat Conroy

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.