gelatin

Concise Oxford English Dictionary © 2008 Oxford University Press:
gelatin /ˈdʒɛlətɪn/ (also gelatine /-tiːn/)

▶noun

• 1 a virtually colourless and tasteless water-soluble protein prepared from collagen and used in food preparation, in photographic processing, and for making glue.

• 2 a high explosive consisting chiefly of a gel of nitroglycerine with added cellulose nitrate.

– derivatives
gelatinization (or gelatinisation) noun,
gelatinize (or gelatinise) verb.

– origin C19: from Fr. gélatine, from Ital. gelatina, from gelata, from L. (see jelly).