gel·a·tin also gel·a·tine (jĕlə-tn)
a. A colorless or slightly yellow, transparent, brittle protein formed by boiling the specially prepared skin, bones, and connective tissue of animals and used in foods, drugs, and photographic film.
b. Any of various similar substances.
2. A jelly made with gelatin, used as a dessert or salad base.
3. A thin sheet made of colored gelatin used in theatrical lighting. Also called gel.
[French gélatine, from Italian gelatina, diminutive of gelata, jelly, from feminine past participle of gelare, to freeze, from Latin gelāre; see gel- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.